Flora of North America species comparison

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Cajanus

cajanus
Habit Shrubs [herbs, vines], short-lived, unarmed.
Stems

spreading to erect, pubescent.
Leaves

alternate, odd-pinnate [palmate];

stipules present;

petiolate;

leaflets 3, stipels present [absent], setiform, blade margins entire, with vesicular glands (gland-dotted) abaxially, surfaces pubescent or glabrous abaxially, pubescent adaxially.
Inflorescences

1–10(–30)-flowered, axillary [terminal], racemes;

bracts present, caducous.
Flowers

papilionaceous;

calyx campanulate, lobes 5, unequal, ± connate distally;

corolla yellow, orange, red, or purplish, to 30 mm;

stamens 10, diadelphous;

anthers dorsifixed.
Fruits

legumes, pedicellate, green to purplish, sometimes variegated, flattened, with transverse lines, oblong [linear-oblong], dehiscent, depressed between seeds, septate, glandular-punctate, densely pubescent.
Seeds

[1 or]2–9[or 10], white to cream and brown, purplish, or nearly black, sometimes mottled, globose to ellipsoid-reniform [subglobose].
x

= 11.

Cajanus
Distribution
from USDA
Asia; Africa; Australia [Introduced, Florida; introduced also in Mexico, West Indies (Antilles, Bahamas), Central America, South America, Australia]
[BONAP county map]
Discussion

Species 34 (1 in the flora).

Cajanus is the type genus of subtribe Cajaninae in tribe Phaseoleae, all species of which possess glandular dots.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11. Author: L. J. G. van der Maesen.
Parent taxa Fabaceae > subfam. Faboideae
Subordinate taxa
C. cajan
Synonyms Atylosia, Cantharospermum, Endomallus
Name authority Adanson: Fam. Pl. 2: 326 — (as Cajan), 529 (as Kajan). 1763, name and orthography conserved
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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