Acanthospermum hispidum
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 522. 1836.
Introduced
Treatment appears in FNA Volume 21. Treatment on page 37.
Revision as of 22:43, 29 July 2020 by imported>Volume Importer
Plants 10–60+ cm. Stems erect. Leaf-blades rhombic-ovate to obovate, (20–) 40–120 (–150+) mm, faces finely pilosulous, glanddotted. Fruits ± compressed, ± cuneate to obovate, 4–6+ mm, not notably ribbed, terminal spines 2, divergent, 3–4 mm, often 1 ± uncinate, prickles seldom notably uncinate, ± scattered. 2n = 22.
Phenology: Flowering year round, mostly Aug–Oct.
Habitat: Disturbed, often sandy sites
Elevation: 0–100+ m
Distribution
Introduced; Ont., Ala., Fla., Ga., N.J., Oreg., S.C., Va., South America, also in Mexico, West Indies, Central America, Europe, Asia, Africa, Pacific Islands (Hawaii)
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Acanthospermum hispidum"
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 +
pilosulous +
scabrellous +
distinct +
proximal +
1;5 +
bisexual +
ribbed +
dispersed +
less cuneate;obovate +
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 +
scattered +
uncinate +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
1836 +
pistillate +
fertile +
paleate +
convex +
fibrous +
exalbuminous +
modifed +
Introduced +
alternate +
erect +
absent +
2-branched +
papillate +
Acanthospermum hispidum +
Acanthospermum +
species +
divergent +
uncinate +
campanulate +
shorter +
annual +