Synthlipsis greggii |
Brassicaceae tribe Physarieae |
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Gregg's keelpod |
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Habit | Annuals, biennials, perennials, or subshrubs; eglandular. | |
Stems | few to several, (1–)2–6(–7.5) dm, densely pubescent. |
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Basal leaves | petiole (0.7–)1.5–5(–7) cm; blade obovate to spatulate or broadly oblong, (1–)2–8(–10) cm × (5–)10–40(–60) mm, base cuneate to truncate, apex acute to subobtuse, surfaces densely pubescent. |
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Cauline leaves | shortly petiolate or (distalmost) sessile; blade similar to basal, 1–5.5(–6.5) cm × 5–25(–40) mm (smaller distally). |
petiolate, sessile, or subsessile; blade base usually not auriculate (except Paysonia), margins entire, dentate, or sinuate. |
Racemes | 0.5–4 cm. |
ebracteate, often elongated in fruit. |
Flowers | sepals (4–)5–8 × 1.5–2 mm; petals (7–)8–11(–13) × (5–)6–9 mm, claw to 2 mm; filaments 4–6 mm; anthers 2.5–4 mm, (base strongly sagittate). |
actinomorphic; sepals erect, spreading, ascending, or reflexed, lateral pair seldom saccate basally; petals white, yellow, lavender, purple, violet, orange, or brown [pink], claw present, often distinct; filaments unappendaged, not winged; pollen (3 or) 4–11-colpate. |
Fruiting pedicels | usually straight or upcurved, rarely slightly sigmoid, (4–)5–15(–20) mm. |
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Fruits | (0.7–)0.8–1.2(–1.5) cm × 5–8(–9) mm, apex deeply notched; valves densely pubescent; style 2–5 mm. |
silicles or siliques, dehiscent, unsegmented, terete, latiseptate, or angustiseptate; ovules 2–100 per ovary; style usually distinct; stigma entire or strongly 2-lobed. |
Seeds | 1.5–2 × 1.2–1.7 mm. |
biseriate, uniseriate, or aseriate; cotyledons accumbent or incumbent. |
Trichomes | usually short-stalked, subsessile, or sessile, sometimes long-stalked, stellate, scalelike, subdendritic, or forked, sometimes mixed with simple ones. |
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2n | = 20. |
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Synthlipsis greggii |
Brassicaceae tribe Physarieae |
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Phenology | Flowering Oct–May. | |
Habitat | Creosote bush-mesquite scrubland, grasslands, gravelly hillsides, rocky sandstone or limestone slopes, rocky flats, limestone rubble, gypsum of llano, calcareous gravel, sandy or loamy areas | |
Elevation | 50-2400 m (200-7900 ft) | |
Distribution |
TX; Mexico (Chihuahua, Coahuila, Durango, Hidalgo, Nuevo León, San Luis Potosí, Tamaulipas, Zacatecas)
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North America; Mexico; South America; Asia (ne Russia) |
Discussion | Synthlipsis greggii is known from Brewster, Hidalgo, and Zapata counties. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Genera 7, species ca. 130 (7 genera, 105 species in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 7, p. 666. | FNA vol. 7, p. 604. |
Parent taxa | Brassicaceae > tribe Physarieae > Synthlipsis | Brassicaceae |
Subordinate taxa | ||
Synonyms | S. greggii var. hispidula | |
Name authority | A. Gray: Mem. Amer. Acad. Arts, n. s. 4: 116. (1849) | B. L. Robinson: in A. Gray et al., Syn. Fl. N. Amer. 1(1,1): 100. (1895) |
Web links |