Pithecellobium keyense
Florida keys blackbead, rams horn
, branches, and twigs densely covered with conspicuous lenticels, glabrescent; short shoots absent.
stipules to 1 mm, not spiny, caducous, hard, triangular-subulate, glabrous;
petiole 0.4–1.5(–2) cm, shorter than rachis, subglabrous;
pinnae 2(or 4), rachis 8–13 mm;
leaflets 2 per pinna, blades obovate to oblanceolate-elliptic, 3–8.5(–9) × 1.5–5(–7) cm, base oblique, margins entire, usually revolute, apex rounded with a very small mucro, brochidodromous venation conspicuous on both surfaces, main vein subcentral, surfaces glabrous.
primary peduncle flattened, axis to 7 cm, glabrescent, secondary peduncles (2.5–)4.5–6 cm, glabrous;
bract absent.
calyx campanulate or tubular, 1.5–2 mm, lobes 0.5 mm, glabrescent;
corolla campanulate or funnelform, to 5.5 mm, lobes 4 or 5;
stamens white, dirty cream, or pink, tube to 3–3.5 mm;
ovary 1–1.5 mm, glabrous, stipe to 1.5 mm.
slightly recurved to 1-coiled (especially at dehiscence), slightly constricted between seeds, 8–20 × 1–1.5 cm, margin not evident, base attenuate, apex cuspidate without beak, glabrous, veins faint;
without stipe.
on secondary peduncles 15–30-flowered, sometimes elongated.
6–12, usually not pendulous, 6–9 × 5–6 mm;
aril red, covering proximal 1/3 of seed.
triangular, 0.8 mm, puberulous abaxially.
= 26.
Pithecellobium keyense
Pithecellobium keyense is known from southern Florida in Broward, Martin, Miami-Dade, and Monroe counties where it is restricted to coastal areas. The species is usually five-merous, but some corollas are four-lobed. Of the three North American Pithecellobium species, P. keyense has the fewest stamens.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
WildflowerSearch
iNaturalist
USDA Plants Database
