Difference between revisions of "Acanthospermum humile"
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 522. 1836.
Introduced
Basionym: Melampodium humile Swartz Prodr., 114. 1788
Treatment appears in FNA Volume 21. Treatment on page 37.
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Latest revision as of 14:28, 15 December 2020
Plants 10–20 (–30+) cm. Stems decumbent to erect. Leaf-blades oval to lyrate, 10–30 (–45) mm, faces ± pilosulous to sparsely sericeous, glanddotted. Fruits strongly compressed, ± cuneate, 2–3 (–4) mm, usually 3-ribbed, terminal spines 2, divergent, 2–3 (–4) mm, often 1 ± uncinate, prickles ± uncinate, mostly along 2 ribs and around apices.
Phenology: Flowering all year.
Habitat: Disturbed, often sandy sites
Elevation: 0–10+ m
Distribution
Introduced; Ala., Fla., S.C., West Indies, also in Central America, South America
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Acanthospermum humile"
introrse +
connate +
herbaceous +
scarious +
absent +
hirsute +
papillate +
continuous +
decurrent +
lyrate;mostly elliptic;deltate rhombic or ovate +
winged;ribbed;winged;ribbed +
1;15 +
stigmatic +
absent +
zygomorphic +
yellowish +
monomorphic +
dimorphic +
staminate +
staminate +
straight +
scabrellous +
distinct +
proximal +
1;5 +
bisexual +
3-ribbed +
dispersed +
cuneate;compressed +
singly +
indeterminate +
true +
surrounding +
hemispheric +
opposite +
cauline +
deltate +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
falling +
absent +
rudimentary +
tough +
thick +
prickly +
hardened +
absent +
connate +
persistent +
distinct +
falling +
unequal +
uncinate +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
1836 +
pistillate +
fertile +
paleate +
convex +
fibrous +
exalbuminous +
modifed +
Introduced +
alternate +
absent +
2-branched +
papillate +
Acanthospermum humile +
Acanthospermum +
species +
divergent +
uncinate +
campanulate +
shorter +
annual +