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

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



Staria S. Vanderpool

Annual, shrub, tree, ill-smelling
Leaves generally 1-palmate, generally alternate, generally petioled; stipules generally minute, often bristle-like or hairy; leaflets 3–7
Inflorescence: raceme, head, or flowers solitary, generally longer in fruit; bracts generally 3-parted below, simple above, or 0
Flower generally bisexual, radial to ± bilateral; sepals generally 4, free or fused, generally persistent; petals generally 4, free, ± clawed; stamens generally 6, free, exserted, anthers generally coiling at dehiscence; ovary superior, generally on stalk-like receptacle, chamber generally 1, placentas generally 2, parietal, style 1, persistent, stigma generally minute, ± head-like
Fruit: generally capsule, septicidal; valves generally 2, deciduous, leaving septum (frame-like placentas) behind; pedicel generally ± reflexed to spreading
Genera in family: 45 genera, 800 species: widespread tropical to arid temp; some cultivated (Capparis spinosa , caper bush)
Reference: [Ernst 1963 J Arnold Arbor 44:81–93]
CA members placed in subfamily Cleomoideae. Alternate family name: Capparidaceae.



Annual, sticky, glandular-hairy
Leaf: leaflets 3–5, oblanceolate to ovate
Inflorescence: raceme, terminal, dense
Flower bilateral; sepals ± free, deciduous; petals generally unequal, obovate, notched at tip, clawed; stamens 8–32, unequal, anthers not coiling; ovary ± sessile, subtended on 1 side by a prominent nectary
Fruit: capsule, dehiscent in upper half; valves persistent; receptacle not stalk-like
Seeds many
Species in genus: 4 species: North America
Etymology: (Greek: many, unequal, from stamens)
Reference: [Iltis 1958 Brittonia 10:33–58]
Taxonomic position problematic.


P. dodecandra (L.) DC. subsp. trachysperma (Torr. & A. Gray) H.H. Iltis

Leaves many; petiole 1.5–4.5 cm; leaflets 1.6–4.5 cm
Inflorescence appearing after leaves, 5–30 cm; pedicels 1–2.5 cm, green to purple
Flower: sepals 4–7 mm, purple; petals 6–13 mm, white, claw 4–5 mm; stamens 10–20, 5–40 mm, filaments purple, anthers 1.0–1.3 mm; nectary bright orange, spheric, concave at top, 2–2.3 mm; style 5–17 mm, deciduous, stigma purple
Fruit 4–7 cm, 5–9 mm wide, green
Chromosomes: 2n=20
Ecology: Waste areas, dry, sandy soil
Elevation: 1400–1500 m.
Bioregional distribution: Sacramento Valley, Modoc Plateau
Distribution outside California: to e Canada, se US
Synonyms: P. trachysperma Torr. & A. Gray

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bioregional map for POLANISIA%20dodecandra%20subsp.%20trachysperma being generated

Retrieve Jepson Interchange Index to Plant Names entry for Polanisia dodecandra subsp. trachysperma
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Overlay Consortium of California Herbaria specimen data by county on this map
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