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Questions tagged [botany]

The study of plants and plant life.

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4 votes
2 answers
55 views

Ontario plant with 3-5 leaflets per compound leaf

This plant has 3-5 leaflets per compound leaf. It caught my eye because, at first, I thought it resembled poison ivy. But I don't think it's poison ivy. What species is it? Date: May 11, 2024 ...
User1974's user avatar
  • 958
3 votes
1 answer
82 views

What is this unusual Plantago?

I found this plant in Rouen (Normandy, France) in a plant bed on the side of a street (May 15th, 2024). It looks like a Plantago lanceolata but some of its inflorescences are not the usual single ...
JoatMon's user avatar
  • 61
3 votes
2 answers
729 views

Thistle-ish plant in Texas

I found the plant below in Fort Worth, TX at the end of March this year, and can't identify it. It looks a bit like a basketflower, or some other thistle-like plant. It was the only one growing ...
LSpice's user avatar
  • 257
3 votes
0 answers
51 views

Plant ID - PNW, E Cascades

Trying to identify a plant I found recently. May 4, 2024; approx. alt. 3000ft on eastern side of Cascades (ponderosa everywhere). I was at an NFS camping area near Ellensburg, WA, walking up the road. ...
TetheredVoid's user avatar
1 vote
0 answers
62 views

Can plants metabolize iron rust?

It is widely accepted that "throwing rusty nails in the garden doesn't provide nutrients to the plants"(my very similar question on gardening.SE). I was under the impression this is due to ...
Vorac's user avatar
  • 189
6 votes
1 answer
504 views

Yellow fruit with calyx, long leaves

What species of plant is this? Location: Greece Date: April 30, 2024 Description: Yellow fruit with calyx, long leaves
User1974's user avatar
  • 958
2 votes
1 answer
48 views

How do roots of a seedling know the direction to grow?

When a seedling starts to grow covered by soil, I thought directions are clear: Roots grow following gravity (down to the water), and the cotyledons (right word?) grow against gravity, so that they'...
U. Windl's user avatar
  • 129
1 vote
0 answers
52 views

Reasons behind the sticky substances are used by poplar in buds

It is well known that sticky poplar buds falling on a car can seriously damage the paint. Also these scales from poplar stick to the paws and fur of animals like Velcro. Personally I don’t think the ...
Mikhail Gaichenkov's user avatar
9 votes
1 answer
859 views

How to read a floral diagram?

The above image is a floral diagram of the family Solanaceae So I was hoping someone could explain how to read this floral diagram The Centre suggestion axial placentation to me The ameboid like ...
math and physics forever's user avatar
2 votes
0 answers
31 views

Is there a recently published Flora of Japan in English?

I am currently getting into the study of the flora of east asia. For China, Taiwan and Korea I could quickly find modern treatises, see 1-3 below. But not for Japan, to my surprise: Even after quite ...
I. Haage's user avatar
  • 121
1 vote
1 answer
42 views

Why does hydroponic basil grow a thick stem?

I heard of a basil plant growing a thick uncuttable base stem when grown hydroponically. In just 6 months. It also grew very tall. One explanation is the nutrient feed is too high. Why else might this ...
GaryW's user avatar
  • 11
0 votes
0 answers
34 views

Generally, order and other higher taxonomic categories are identified based on the aggregates of characters. Please explain this

In a book it is written: Generally, order and other higher taxonomic categories are identified based on the aggregates of characters. What does it means? Every group is made only after observing ...
Amit Kumar's user avatar
5 votes
1 answer
253 views

What kind of plant is this? (looks like periwinkle)

Found this flowering plant near my house in Pennsylvania, USA. What kind of plant is it? I really like it because it is keeping out the weeds. I think the previous owners had planted it. It looks like ...
pmagunia's user avatar
  • 193
4 votes
1 answer
393 views

Yellow dandelion-like flowers emerging from beach in early spring

What are these yellow-flowered plants? The yellow flowers look similar to dandelions, but the stalks are much thicker. No leaves yet, just flowers. March 30, 2024. Unusually warm winter this year. ...
User1974's user avatar
  • 958
0 votes
0 answers
24 views

How fast could the Amazon rainforest regrow after deforestation?

We hear a lot about clear-cutting of the Amazon rainforest and how that affects climate change. However, are there any studies on how fast areas of rainforest can regrow or the ecosystem can recover ...
user2352714's user avatar
0 votes
0 answers
29 views

How are plant meristems free from viral infection?

My textbook mentions an application of tissue culture; A meristem extract from an infected plant (both apical and axillary work) can be used to grow a virus-free plant in vitro. But what makes these ...
Gaurav Sai Maddipati's user avatar
0 votes
0 answers
12 views

Formation of xylem

Does metaxylem forms from protoxylem? Or they develop independently? My main motif is to clarify, " Is metaxylem just a more developed protoxylem? "
Himalayan's user avatar
2 votes
1 answer
248 views

Are these objects we found ambergris? How to distinguish ambergris from other deposits/minerals

These two objects below were found on the East Coast of the North Island of New Zealand on seperate occasions but within 5km of each other. They both had a strong and unique, neither pleasant nor ...
Lamar Latrell's user avatar
0 votes
0 answers
14 views

Near-infrared EM spectrum and uses in biology (specifically in botany/vegetation)

A little explanation for my problem: I have a large dataset - images of aerial scans of my country. These images are available in both RGB and RGBN colors - N specifying the near-infrared color ...
Timotej Leginus's user avatar
0 votes
1 answer
32 views

Plant tissue cultures without Phytohormones?

Is it possible to do tissue cultures without using phytohormones like BAP or NAA. So to just use for instance MS-Media. Online, I just found that every plant is possible to culture with the right ...
Jonah's user avatar
  • 1
2 votes
1 answer
103 views

What Causes the White Layer on These Leaves?

I recently noticed that a Malabar Java plum (Jamun) tree in our garden has most of its leaves covered in a strange white layer, like in the picture I've attached. I'm curious to understand why this ...
Lawliet's user avatar
  • 187
0 votes
0 answers
26 views

Bacterium fixed nitrogen transfer mechanism

As it is well known, Rhizobium and other bacteria have the capacity to fix Nitrogen and thus perform a crucial role in the natrual nitrogen cycle. I am trying to find a reliable source on how the ...
Grigoris L. 's user avatar
1 vote
1 answer
70 views

Is it possible to live without iodine? (sea plants, seaweed or fish?)

I’ve come across a few other people asking this question on different forums such as on Quora, and Reddit… With my current understanding, we evolved from sea creatures which is why we still need ...
Lecifer's user avatar
  • 119
0 votes
0 answers
9 views

Current Fern Taxonomy

In our school, the manual exhibits an outdated taxonomy as expressed by my teacher. We're following the Kingdom Plantae, Division Pterophyta, then divided into three Orders: Order Filicales Order ...
Jj Luntayan's user avatar
0 votes
1 answer
38 views

What indoor plants or groups of plants are significant consumers of CO2?

I am experimenting with the goal to reduce CO2 ppm in a 4200 sqr ft (12 rooms) dwelling by either distributing more plants through the space, or using a hydroponic garden's air as a source in the ...
greg messer's user avatar
1 vote
1 answer
46 views

Anatomy of mature juice vesicles in hesperidium fruit?

What is the cellular structure of mature juice vesicles? In a mature juice vesicle what cell types are present, how are they arranged and does this differ between species?
Harrychink's user avatar
1 vote
1 answer
173 views

Does my dracaena marginata have spider mites?

I'm trying to determine if my dracaena marginata has spider mites. A little history about the plant: I got it about 5 months ago and it seemed to be an outdoor plant with the previous owner. Since ...
dmking0728's user avatar
4 votes
0 answers
66 views

Trying to identify a plant by its root

My kids were digging through a pile of dirt I had made for them to play with (my son wants to do bike jumps off it) and they brought in the attached root. I never got to see what kind of vegetation ...
Joseph sienkiewich's user avatar
0 votes
1 answer
77 views

What happens if a lysosome is pierced and it's enzymes are made to get released

I am confused the results be same as it happens when lysosome gets damaged during some metabolic activity or different . If same the cell will die by the actions of those hydrolytic enzymes slowly or ...
Aishna Sharma's user avatar
2 votes
2 answers
76 views

Why is coconut a fleshy fruit?

Firstly, I understand that it is classified as a drupe and its mesocarp is fibrous hence its hardness. However, how did botanists conclude such? Putting both mango and coconut side by side, we can at ...
Jj Luntayan's user avatar
0 votes
1 answer
73 views

Plant (lamp) identification

I recently came across this lamp part and wanted to get a lamp shade in the shape of the matching blossom. Does someone recognize the leaves?
Creative Frankenstein's user avatar
1 vote
1 answer
77 views

What plants are these

These are aquatic plants. Anyone knows the name please? Well. For a week more and most of them stems rotted. So, wondering if its planted by submerged in the soil or what.
Dini's user avatar
  • 119
0 votes
0 answers
53 views

Are there any plants that retrieve energy from the wind?

Many trees grow in windy places, but appear to have adapted to this by developing characteristics that provide resistance to wind. Are there any plants that appear to have been selected for the ...
Anixx's user avatar
  • 3,016
0 votes
0 answers
24 views

centrioles in primitive plants, algae and fungi

Do these groups of organizms lack centrioles or possess? Red algae (yes?) Diatoms (no?) Yest (no?) Chydtridiomycetes (no?) Liverworths (yes?) Hornwoths (yes?) 7.Zygomycetes (no?) Cannot find exact ...
Marijus Klp's user avatar
-4 votes
1 answer
81 views

Roses are red ... and have thorns

Just had an unpleasant encounter with a wild rose. Not her fault, should've kept my distance. Roses are some of the plants that have anatomical defenses (I'm talking about thorns). Well, what ...
Hudjefa's user avatar
  • 210
0 votes
0 answers
15 views

What allows ovaries to fuse to form a multiple fruit?

If these ovaries are from different flowers but from a single inflorescence, what makes it possible for these ovaries to fuse or produce a single mass? Furthermore, what exactly is the process of ...
Jj Luntayan's user avatar
3 votes
1 answer
108 views

Why is tautonymy forbidden in botany?

From Merriam Webster: tautonym: a taxonomic binomial in which the generic name and specific epithet are alike and which is common in zoology especially to designate a typical form but is forbidden to ...
imrobert's user avatar
  • 442
2 votes
0 answers
145 views

When Rain Lilies Bloom

I have had the Pink Rain Lilies in a large pot for over 10 years. In that time span, I have noticed it doesn't matter how much water, or what kind, is given to them, I water them daily in warm weather....
Ladyandetramp's user avatar
0 votes
1 answer
65 views

White oak germination in autumn — Leaves or just roots?

I collected fallen acorns from a white oak tree in Toronto, Ontario, in mid-September 2023. The acorns were germinating at the time, so I planted them (in a cage to protect them from rodents). So far, ...
User1974's user avatar
  • 958
1 vote
0 answers
63 views

How do plants that grow underground legumes/nuts distribute their seeds?

It makes perfect sense to me when plants employ some sort of method of distributing their offspring some distance from the mother plant. If the mother plant dies due to that location not being ideal, ...
Jackson's user avatar
  • 111
0 votes
1 answer
27 views

Other than lignification how does secondary xylem attain its stiffness then balance that with remaining living processes?

I read in a textbook that the vascular cambium creates secondary xylem to its inside and outside. These cells, formerly conducting water, dry out and harden. Their cell walls get lignified creating ...
GaryW's user avatar
  • 11
0 votes
1 answer
92 views

Is kranz anatomy not a defining feature of $C_4$ plant?

In NCERT Class 11 chapter 13 it is written that The particularly large cells around the vascular bundles of the C4 plants are called bundle sheath cells, and the leaves which have such anatomy are ...
Harjot Dhillon's user avatar
1 vote
0 answers
40 views

Water transport to the Shoot apical meristem in a seedling

I am familiar with how plants transport water from the roots to leaves. Specifically, Water evaporates from the leaf surface, generating a negative pressure gradient which pulls water up from the root....
Giraffes4thewin's user avatar
2 votes
1 answer
48 views

Hypothetical violation of independence assumption for linear models

Let's say I have measured the abscisic acid content (could be any metabolite really) of 10 individual plants which we can consider biologically independent. Then I repeat that measurement for all 10 ...
Luke Richards's user avatar
1 vote
0 answers
42 views

Looking for literature that gives a systematic presentation of geometric and topological features of trees

Introduction I am a software engineer specializing in procedural generation of 3D models, and currently I'm building a generator for 3D models of trees, founded on the theoretical work of Aristid ...
honknoodle's user avatar
0 votes
0 answers
137 views

Is it possible to reconnect a severed tree trunk and save a tree?

I ask this question because I saw in a the news recently (September 28, 2023) that some vandal cut down the famous Sycamore Gap Tree I know people normally don't put trees back together, but from ...
Rob N's user avatar
  • 111
3 votes
1 answer
118 views

Identify a hanging plant with spherical leaves

This plant was found in the "drylands" section of a public conservatory (you can see a potted cactus in the background). It did not have a label, and there was nobody around to ask about it....
Mark's user avatar
  • 892
1 vote
1 answer
138 views

Identifying a plant in the botanical garden of Paris

I went to the botanical garden in the "Jardin des Plantes" in Paris. In a glasshouse with the name "Serre de l'histoire des plantes" on the natural history of plants (exhibiting ...
G. Blaickner's user avatar
0 votes
0 answers
87 views

Explanation behind the observed chloroplasts in Elodea during Hypotonic vs Isotonic Solution

Me and my colleagues put the elodea leaf in distilled (hypotonic) and tap water (isotonic). We observed under the microscope that the elodea under the hypotonic solution became elongated and turgid, ...
Jj Luntayan's user avatar
1 vote
0 answers
42 views

Plants taxonomy: priority of names published in the same year

Article 11.3 of the International Code of Nomenclature for algae, fungi, and plants states that the earliest valid name with the same rank has the priority. The question is: if two names (or more...) ...
dandelion's user avatar

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