Jepson Flora Project: Jepson Interchange    

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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.



Barry A. Prigge

Shrub (sometimes climbing), tree, sometimes thorny, generally glabrous
Leaves simple, opposite or alternate, ephemeral to persistent, subsessile or petioled; veins pinnate
Inflorescence: cluster, cyme, raceme, panicle, or flower solitary, axillary or terminal, bracted
Flower generally bisexual, radial, small; hypanthium ± cup-shaped; sepals 4–5; petals (0)4–5, free; stamens 4–5, alternate petals, attached below or to rim of disk; ovary superior or ± embedded in disk, 2–5-chambered, placentas axile or basal, style generally 1, short, stigma ± head-like, 2–5-lobed
Fruit: capsule, winged achene, berry, drupe, or nutlet, often 1-chambered
Seed generally 1 per chamber, arilled
Genera in family: 50 genera, 800 species: worldwide, especially se Asia; some ornamental (Celastrus, Euonymus, Maytenus,, Paxistima )
Reference: [Brizicky 1964 J Arnold Arbor 45:206–234]


Shrub, prostrate to ascending
Stem: twig 4-angled, with corky ridges
Leaves opposite, persistent, leathery, finely toothed
Inflorescence axillary, 1–3-flowered
Flower: parts in 4's; petals red-brown; disk fused to hypanthium, ± square, fleshy; stamens short, attached to disk margin; ovary embedded in disk, stigma lobes 2, obscure
Fruit: capsule, loculicidal; valves 2
Seed shiny, dark brown to black; aril surrounding base and 1 side of seed, white, thin, fringed
Species in genus: 2 species: North America
Etymology: (Greek: thick stigma)


P. myrsinites (Pursh) Raf.


Plant 3–10 dm
Stem prostrate to spreading, ± stiff, densely branched
Leaf: petiole ± 1 mm; blade 8–34 mm, ovate to oblanceolate, base tapered, tip rounded to acute
Inflorescence: peduncle 2–3 mm
Flower: petals ± 1 mm, ovate
Fruit 4–7 mm, obovoid
Ecology: Shaded places
Elevation: 600–2000 m.
Bioregional distribution: Northwestern California, Cascade Range, n&c Sierra Nevada, n San Francisco Bay Area (Marin Co.), Modoc Plateau
Distribution outside California: to British Columbia, Rocky Mtns, n Mexico
Horticultural information: SHD, DRN, IRR: 1, 2, 3, 4, 5, 6, 7, 15, 16; DFCLT.

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