Contains 3 accepted taxa overall.
Characteristics
Classification
Citation
STROPHOSTYLES Elliott, Sketch Bot. S. Carolina 2: 229. 1823, nom. cons. vs. Phasellus Medikus 1787.
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TYPE: Strophostyles angulosa (Muhlenberg ex Willdenow) Elliott, typ. cons. (Glycine angulosa Muhlenberg ex Willdenow)
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Strophostyles helvola | TRAILING FUZZYBEAN | Native FAC (NWPL) | ||
| Strophostyles leiosperma | SLICKSEED FUZZYBEAN | Native | ||
| Strophostyles umbellata | PINK FUZZYBEAN | Native FAC (NWPL) |
Identification Key
1. Leaflets distinctly sericeous, lanceolate, never deeply lobed; inflorescence peduncle slender, herbaceous, 0.2–0.7 mm wide, 11.5–110(-123) mm long; flowers 3.6–7.0(-8.3) mm long; keel petal with a slightly curved beak that is largely enveloped by the wing petals (keel beak asymmetry is not detectable in pressed specimens); fruit distinctly sericeous, 12.2–40.7 mm long; seed glabrous
1. Leaflets glabrate to sparsely strigose (rarely sericeous), linear-oblong to ovate, entire to deeply lobed; inflorescence peduncle stout, lignescent, 0.8–1.3 mm wide, (23.5-)50–300 mm long; flowers commonly 6.7–15 mm long; keel petal with a prominently curved beak that protrudes well above the wing petals (keel beak asymmetry is readily detectable in pressed specimens); fruit glabrate to sparsely strigose (rarely sericeous) (26) 30–96.1 mm long; seed pubescent
2
2. Leaflets entire to shallowly lobed, rarely deeply lobed, the sinus 0.0–1.0 (6.0) mm deep, terminal leaflets (15.4) 20–40 (70) mm long, 2.0–21.8 (30.2) mm wide; bracteoles subtending the flower 0.8–2.4 mm long, generally shorter than the calyx tube; corolla keel beak erect, stout, slightly curved, measuring 1.5–2.0 mm in diameter at the base and remaining closely associated with the face of the standard petal; fruit subcylindrical, with a distinct lateral compression
2. Leaflets deeply lobed to entire, the sinus 0.0–18.2 mm deep, terminal leaflets 17.9–71.5 mm long, 8.5–46.2 mm wide; bracteoles subtending the flower 1.5–4.2 mm long, generally as long or longer than the calyx tube; corolla keel beak slender, curved, measuring about 1 mm in diameter at the base and projected outward from the face of the standard petal; fruit cylindrical
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| Phasellus | Phasellus Medikus, Vorles. Churpfälz. Phys. Okon. Ges. 2: 352. 1787, nom. rej. vs. Strophostyles Elliott 1823. | TYPE: Phasellus roseus Medikus 1787, nom. illegit. (Phaseolus farinosus Linnaeus 1753.) |