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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Lauramay T. Dempster (except as specified)

Annual, perennial herb, sometimes strongly scented; odor generally disagreeable
Leaves simple, pinnately lobed, or compound; petioles sometimes sheathing; basal ± whorled; cauline opposite, petioled to sessile
Inflorescence: cyme, panicle, or head-like, generally ± dense
Flowers generally bisexual; calyx fused to ovary top, limb 0 or highly modified (if present, lobes generally 5–15, coiled inward, becoming plumose, pappus-like, spreading in fruit); corolla radial to 2-lipped, lobes generally 5, throat generally > lobes, > tube, base generally spurred or swollen, tube slender, long or short; stamens generally 1–3, epipetalous; ovary inferior, chamber generally 1 (sometimes 3 but 2 empty or vestigial)
Fruit: achene, smooth, ribbed, or winged
Genera in family: ± 17 genera, 300 species: generally temp, worldwide except Australia. Some species cultivated (Centranthus ), some medicinal (Valeriana )
Reference: [Ferguson 1965 J Arnold Arbor 46:218–225]


Fred R. Ganders

Annual, glabrous
Stem generally erect, 5–80 cm, generally angled, simple or few-branched
Leaves simple, basal and cauline, opposite, generally entire; basal short-petioled, spoon-shaped; cauline generally sessile, oblong, ovate, or obovate
Inflorescence clustered, head-like or interrupted spike, terminal
Flower: calyx 0; corolla 2-lipped to ± radial and funnel-shaped, white to dark pink, tube generally spurred at base; stamens 3
Fruit: achene; body ± triangular, 2–4 mm, strongly winged or not, wings lateral, wide, ± glabrous to densely hairy
Species in genus: 5 species: w North America, sw South America
Etymology: (Greek: spur)
Reference: [Morey 1962 PhD thesis, Stanford U]
Self-compatible; large-flowered taxa cross- and self-pollinated, small flowered taxa self-pollinated. Wing shape, color, hairiness vary in some species


P. ciliosa (Greene) Jeps.

Flower: corolla 1.5–8.5 mm, pink or dark pink, 2-lipped, lower lip with 2 red spots; spur slender, pointed
Fruit: convex side of body grooved lengthwise, winged; wing hairs in vertical bands especially near body, wing margin thick, generally grooved lengthwise
Chromosomes: 2n=32
Ecology: Common. Open, partly shaded slopes
Elevation: < 1700 m.
Bioregional distribution: California Floristic Province (except North Coast)
Distribution outside California: to Washington, Arizona, n Baja California

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bioregional map for PLECTRITIS%20ciliosa being generated
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Plectritis ciliosa
Retrieve dichotomous key for Plectritis
Overlay Consortium of California Herbaria specimen data by county on this map
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