Acanthospermum hispidum

de Candolle in A. P. de Candolle and A. L. P. P. de Candolle

in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 522. 1836. 1836

Introduced
Treatment appears in FNA Volume 21. Treatment on page 37.

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"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
corymbiform +  and open +
indeterminate +  and determinate +
John L. Strother +
de Candolle in A. P. de Candolle and A. L. P. P. de Candolle +
decurrent +
12 cm120 mm <br />0.12 m <br /> (15 cm150 mm <br />0.15 m <br />) +
4 cm40 mm <br />0.04 m <br /> (12 cm120 mm <br />0.12 m <br />) +
rhombic-ovate +  and obovate +
compound +  and simple +
lyrate;mostly elliptic;deltate rhombic or ovate +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
obovoid +  and more or less prismatic +
fertile +  and bisexual +
Ont. +, Ala. +, Fla. +, Ga. +, N.J. +, Oreg. +, S.C. +, Va. +, South America +, also in Mexico +, West Indies +, Central America +, Europe +, Asia +, Africa +  and Pacific Islands (Hawaii) +
0–100+ m +
pilosulous +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Disturbed, often sandy sites +
in open , corymbiform arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
hemispheric +
sessile +  and petiolate +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
2-carpellate +
persistent +
rudimentary +
Flowering year round, mostly Aug–Oct. +
10 +  and 13 +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
Introduced +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Compositae +
Acanthospermum hispidum +
Acanthospermum +
species +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
campanulate +
toothed +  and entire +
60 cm600 mm <br />0.6 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
10 cm100 mm <br />0.1 m <br /> (60 cm600 mm <br />0.6 m <br />) +
10 cm100 mm <br />0.1 m <br /> (60 cm600 mm <br />0.6 m <br />) +