Flora of North America species comparison

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Crotalaria avonensis

avon park rattlebox
Habit Herbs perennial.
Stems

erect to slightly spreading, 2–10 cm, strigose to sericeous.
Leaves

unifoliolate;

stipules absent;

blade oblong, elliptic to ovate, or suborbiculate, (5–)8–19 mm, length 1.3–3.5 times width, surfaces loosely strigose-sericeous.
Racemes

(1 or)2–8-flowered, terminal, subterminal, or lateral, 2–6 cm;

bracts persistent, linear-triangular.
Flowers

calyx cylindrical, 7–8 mm, lobes triangular-lanceolate, loosely strigose;

corolla bright yellow, 8–9 mm.
Legumes

14–25 × 6–8 mm, glabrous or sparsely strigose on abaxial suture.

Crotalaria avonensis
Phenology Flowering Mar–Jun.
Habitat White sands, scrub dominated by Florida rosemary, oaks, and/or sand pine, disturbed areas along roads and trails.
Elevation 30–50 m. (100–200 ft.)
Distribution
from FNA
FL
[BONAP county map]
Discussion

Crotalaria avonensis is known only from northern Highlands and southern Polk counties on the Lake Wales Ridge; it is in the Center for Plant Conservation’s National Collection of Endangered Plants.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 11.
Parent taxa Fabaceae > subfam. Faboideae > Crotalaria
Sibling taxa
C. incana, C. juncea, C. lanceolata, C. ochroleuca, C. pallida, C. pumila, C. purshii, C. retusa, C. rotundifolia, C. sagittalis, C. spectabilis, C. trichotoma, C. verrucosa, C. virgulata
Name authority DeLaney & Wunderlin: Sida 13: 315, figs. 1–5. (1989)
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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