Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

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  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

BRASSICACEAE

MUSTARD FAMILY

Reed C. Rollins, except as specified

Annual to subshrub
Leaves generally basal and cauline, alternate, generally simple; stipules 0
Inflorescence: generally raceme
Flower bisexual; sepals 4, free; petals (0)4, free, generally white or yellow, often clawed; stamens generally (2,4)6, generally 4 long, 2 short; ovary 1, superior, chambers generally 2, septum membranous, connecting 2 parietal placentas, style 1, stigma simple or 2-lobed
Fruit: generally capsule ("silique") with 2 deciduous valves, sometimes breaking transversely or indehiscent
Seeds 1–many per chamber
Genera in family: 300+ genera, 3000+ species: worldwide, especially cool regions; some cultivated for food (especially Brassica, Raphanus ) and ornamental
Recent taxonomic note: Recently treated to include Capparaceae [Rodman et al. 1993 Ann Missouri Bot Gard 80:686–699; Rollins 1993 Cruciferae of Continental North America. Stanford Univ Press]
Family description, key to genera by Robert A. Price.

LYROCARPA

Annual, perennial herb, woody at base or not; hairs dense ± throughout, multibranched
Stem branched
Leaves petioled, deeply pinnately lobed to wavy-margined
Inflorescence open, elongate
Flower fragrant; calyx cylindric, sepals erect, converging above, << petals, outer pair ± sac-like at base
Fruit obcordate to lyre-shaped, flattened perpendicular to septum
Seeds 3–10 per chamber; embryonic root at edges of both cotyledons
Species in genus: 3 species: sw US, Mex
Etymology: (Greek: lyre fruit, from fruit shape)

Native

L. coulteri Hook. & Harv. var. palmeri (S. Watson) Rollins

COULTER'S LYREPOD

Perennial; caudex ± woody, irregularly branched
Stems several–many, 3–8 dm, straw-colored below, grayish above
Leaf 1–15 cm, generally < 1 cm wide, linear to ± ovate; lobes linear to oblong
Flower: sepals 8–11 mm, ± 1.5 mm wide; petals 1.5–2.5 cm, linear to oblanceolate, brownish to dull purple, blades 1–3 mm wide, generally twisted, tip acute to acuminate
Fruit 1–2 cm, ± as wide as long; pedicel spreading or ascending, 3–7 mm; style ± 0, stigma with 2 large spreading lobes
Seeds 3–5 per chamber, 2–3 mm, round; wing 0
Ecology: UNCOMMON. Dry slopes, gravelly flats, washes
Elevation: < 600 m.
Bioregional distribution: Sonoran Desert
Distribution outside California: Baja California
Flowering time: Dec–Apr
See the CNPS Inventory for information about endangerment and rarity.
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