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.

LOASACEAE

LOASA FAMILY

Barry Prigge

Annual to shrub; hairs needle-like, stinging, or rough
Leaves alternate in CA, generally ± pinnately lobed; stipules 0
Inflorescence various
Flower bisexual, radial; sepals generally 5, generally persistent in fruit; petals generally 5, free or fused to each other or to filament tube; stamens 5–many, filaments thread-like to flat, sometimes fused at base or in clusters; petal-like staminodes sometimes present; pistil 1, ovary inferior, chamber generally 1, placentas generally 3, parietal, style 1
Fruit: generally capsule (utricle)
Seeds 1–many
Genera in family: 15 genera, ± 200 species: especially Am (Africa, Pacific)
Reference: [Ernst & Thompson 1963 J Arnold Arbor 44:138–142]

EUCNIDE

ROCK NETTLE

Annual to subshrub; hairs generally needle-like and stinging (or barbed)
Leaf widely ovate to ± round, toothed to ± lobed; base widely tapered to cordate
Inflorescence: cyme, bracted
Flower: petals fused below middle or to filament tube; stamens many, epipetalous or fused at base into short tube; ovary club-shaped to spheric, placentas 5, stigma lobes 5, generally appressed
Fruit obovoid to spheric, nodding or reflexed, clearly pedicelled, dehiscent from top by 5 valves
Seeds many, < 1 mm, ± oblong, grooved or ribbed
Species in genus: 8 species: sw US, n Mex
Etymology: (Greek: strongly nettle-like)

Native

E. rupestris (Baill.) H.J. Thomps. & W.R. Ernst

ROCK NETTLE

Annual < 30 cm
Leaf: petiole < 6 cm; blade 1–8 cm, generally round, toothed to weakly lobed, green and shiny above, base widely tapered to cordate
Flower: pedicel in fruit < 2 cm, reflexed; sepals 3.5–7 mm, 2–3 mm wide, tip obtuse; corolla tube 8–15 mm, narrowly cylindric, with ring of hairs at base, generally greenish, lobes 2–5 mm, erect, green; stamens epipetalous, sessile or filaments < 1.5 mm; stigma lobes below or = anthers
Fruit 7–15 mm, cylindric
Ecology: Crevices, cliffs
Elevation: 500–600 m.
Bioregional distribution: s Sonoran Desert (Painted Gorge, Imperial Co.)
Distribution outside California: Arizona, n Mexico (including islands)
Flowering time: Dec–Apr
Synonyms: Sympetaleia r. (Baill.) A. Gray
See the CNPS Inventory for information about endangerment and rarity.
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bioregional map for EUCNIDE%20rupestris being generated
 


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