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Hansen & Rahn | Family List

Amaranthaceae A. L. Jussieu

habit
woody plants, herbaceous plants

hairs
glandular, stellate, stellate, 2-armed or T-shaped, non-glandular, branched

distribution
African, Asian, Australian and Oceanian, European, North American, South American

leaf: position
opposite or verticillate, alternate

leaf: nature
not compound

leaf: venation
pinnate or hardly visible in leaves or leaflets.

margin
with entire margin

leaf: stipules
absent

inflorescence
raceme, spike, head, compound, sympodial or monopodial

flower: sexuality
bisexual

flower: symmetry
actinomorphic

flower: receptacle
small, enlarged, completely united with the ovary, totally or partially covering it

flower: disc
absent, present

flower: perianth number
1, 2, 3, 4, 5

flower: perianth nature
perianth of similar segments

flower: sepal number
1, 2, 3, 4, 5

flower: sepal position
all free from one another, connate

flower: sepal nature
sepals imbricate or contorted

flower: petal number
0

stamen: number
1, 2, 3, 4, 5

stamen: symmetry
the same number as and opposite the petals or alternate with the sepals

stamen: anthers
dorsifixed or ventrifixed, introrse, opening by longitudinal slits, 1-locular at anthesis

stamen: filaments
free from the corolla, not connate, connate into 1 tube or bundle

stamen: other characters
staminodia present

pistil: style
styles absent, stigmas sessile, style 1, or styles more or less connate

pistil: carpel
2, 3

pistil: ovary
1-locular

pistil: ovule
1 in each loculus, 2 in each loculus, 3+ in each loculus

pistil
ovules axile, carpels connate, ovules attached to the central axis or ventrally in apocarpae, ovules attached to the base of the ovary

fruit: type
a capsule, a nut, fleshy

fruit: seed
1 seed, 2 seeds, 3+ seeds

seed: aril
arillus or arill-like organs present

seed: embryo
curved

seed: endosperm
seeds with endosperm


 

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