Wislizenia refracta |
Wislizenia californica |
|
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Jack ass clover, spectacle fruit |
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|
Habit | Annuals, 40–200 cm. | Annuals, 40–240 cm. |
Stems | glabrous or glabrate (sometimes smooth when dry). |
puberulent or glabrous. |
Leaves | petiole 0.2–3.1 cm; leaflets 3, green, blade ovate or obovate, (0.4–)1–4.9 × 0.4–2 cm, 1.5–4(–5.5) times as long as wide, margins entire, apex acute to rounded. |
petiole 0.1–3 cm; leaflets 3, gray-green abaxially, yellowish green adaxially, blade obovate, 0.4–2(–3.5) × 0.4–2 cm, less than 2.8 times as long as wide, margins entire, apex rounded, surfaces puberulent. |
Racemes | 1–1.5 cm (2–3 cm in fruit). |
1–1.5 cm (2–3 cm in fruit). |
Flowers | sepals green, lanceolate, 0.4–1.7 × 0.2–0.7 mm, more than 1.75 times as long as wide, margins entire, glabrous; petals yellow, oblong, 1.4–4.6 × 0.5–1.8 mm; stamens yellow, 2–6 mm; anthers 0.5–1.7 mm; gynophore (reflexed in fruit), 2–12 mm in fruit, usually shorter than pedicel. |
sepals green, lanceolate, 0.5–1.6 × 0.3–0.7 mm, more than 1.75 times as long as wide, margins entire, glabrous; petals yellow, oblong, 2.5–5 × 0.6–1.9 mm; stamens yellow, 2–9 mm; anthers 1.3–2.5 mm; gynophore ca. 5 mm in fruit, usually longer than pedicel. |
Seeds | 0.5 × 0.3 mm. |
0.5 × 0.3 mm. |
Schizocarps | 1.2–3.3 × 1 mm. |
1.4–3.4 × 1 mm. |
2n | = 40. |
= 40. |
Wislizenia refracta |
Wislizenia californica |
|
Phenology | Flowering spring–fall. | Flowering late Jul–Oct. |
Habitat | Dry sandy flats, desert scrub, roadsides | Sandy washes, banks of irrigation ditches, roadsides, croplands |
Elevation | 500-2400 m (1600-7900 ft) | 20-300 m (100-1000 ft) |
Distribution |
AZ; CA; NM; NV; TX; UT; Mexico (Chihuahua, Sonora)
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CA |
Discussion | Wislizenia refracta is known from trans-Pecos Texas, and from the Mojave Desert (San Bernardino County and Little San Bernardino Mountains in Riverside County) in California. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Wislizenia californica is known only from the San Joaquin Valley. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 7, p. 214. | FNA vol. 7, p. 214. |
Parent taxa | Cleomaceae > Wislizenia | Cleomaceae > Wislizenia |
Sibling taxa | ||
Synonyms | W. costellata, W. melilotoides, W. refracta var. melilotoides, W. scabrida | W. refracta subsp. californica |
Name authority | Engelmann: in F. A. Wislizenus, Mem. Tour N. Mexico, 99. (1848) | Greene: Proc. Biol. Soc. Wash. 19: 130. (1906) |
Web links |