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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Anita F. Cholewa and Douglass M. Henderson

Annual, perennial herb, subshrub, glabrous to glandular-hairy
Leaves simple, basal or cauline, alternate, opposite, or whorled, sessile or petioled; stipules 0
Inflorescence sometimes scapose
Flower bisexual, radial; parts generally in 4's or 5's; calyx deeply lobed, often persistent; corolla lobes spreading to reflexed; stamens epipetalous, opposite corolla lobes; ovary generally superior, 1-chambered, placenta basal or free-central, style 1, stigma head-like
Fruit: capsule, circumscissile or 2–6-valved
Seeds small, few–many
Genera in family: ± 25 genera, 600 species: especially n hemisphere; several ornamental (Cyclamen , Dodecatheon , Primula )
Reference: [Channell & Wood 1959 J Arnold Arbor 40:268–288]



Perennial, erect, glabrous
Leaves cauline, alternate, petioled or ± sessile, entire
Inflorescence: raceme, terminal
Flower small; parts in 5's; corolla > calyx, white, lobes opposite stamens; stamens 5, alternate 5 stamen-like appendages; ovary partly inferior
Fruit 5-valved, spheric
Species in genus: ± 10 species: ± worldwide
Etymology: (Celtic: from curative properties)


S. parviflorus Raf.

Stem 1.5–4 dm
Leaf 2–5 cm; blade obovate to oblong-lanceolate, generally tapered to winged petiole, tip obtuse to rounded
Inflorescence: pedicels ascending to spreading, 1–2 cm, with 1 bractlet
Flower: calyx 1–2 mm, lobes short, triangular, tooth-like; corolla ± 1.5 mm wide
Fruit ± 2.5 mm wide
Chromosomes: 2n=26
Ecology: Moist sites
Elevation: generally < 1300 m.
Bioregional distribution: San Joaquin Valley, Central Coast, San Francisco Bay Area, South Coast Ranges, South Coast, n Channel Islands, Western Transverse Ranges
Distribution outside California: to British Columbia, e N.America, Mexico, S.America
S. ebracteatus Kunth (lower 4 leaves >> 5 cm; bractlet 0), from Baja CA and Clark Co., NV, expected in extreme se CA
Horticultural information: TRY; STBL.

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bioregional map for SAMOLUS%20parviflorus 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 Samolus parviflorus
Retrieve dichotomous key for Samolus
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