Jepson Flora Project: Jepson Interchange    

link to manual TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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Annual, perennial herb, shrubs, generally bristly or sharply hairy
Stem prostrate to erect
Leaves cauline, often with basal rosette, generally simple, alternate; lower sometimes opposite, entire
Inflorescence: cyme, generally elongate, panicle-, raceme- or spike-like, coiled in flower, generally uncoiled in fruit or flowers 1–2 per axil
Flowers generally bisexual, generally radial; sepals 5, free or fused in lower half; corolla 5-lobed, generally salverform, top of tube generally appendaged, appendages 5, alternating with stamens, sometimes arching over tube; stamens 5, epipetalous; ovary superior, generally 4-lobed, style generally entire
Fruit: nutlets 1–4, smooth to variously roughened, sometimes prickly or bristled
Genera in family: ± 100 genera, ± 2000 species: tropical, temp, especially w North America, Medit; some cultivated (Borago, Echium, Myosotis, Symphytum ). Almost all genera may be TOXIC from alkaloids or accumulated nitrates
Recent taxonomic note: Recently treated to include Hydrophyllaceae [Olmsted et al. 2000 Mol Phylog Evol 16:96–112]
Family description, key to genera by Timothy C. Messick.


Timothy C. Messick and Barbara Veno

Stem 2–40 cm, strigose, breaking apart at nodes or not
Leaves generally alternate, generally 0.5–4 cm, ± linear, strigose to sharp-bristled
Inflorescence: pedicel in fruit generally free from nutlets, generally recurved
Flower: sepals generally < fruit, upper 2 in fruit generally > others; corolla 0.8–3 mm, white; style attached to receptacle, unbranched, generally persistent, stigma 1, head-like
Fruit: nutlets generally 4, spreading, 1–4.5 mm, generally paired, generally compressed, marginal prickles hooked at tip, not barbed; nutlet pairs or all 4 often dissimilar in shape, ornamentation, margin width
Species in genus: 15 species: CA to B.C., WY, TX, n Mex; also South America
Etymology: (Greek: comb nut, from dentate nutlet margins in some species)
Reference: [Veno 1979 PhD dissertation UCLA]
Horticultural information: STBL.


P. setosa A. Gray

Stem ascending to erect, 2–23 cm
Leaves: lower opposite, fused at base; upper alternate
Inflorescence: pedicels in fruit ascending or reflexed, ± 0.5 mm
Flower: sepals in fruit ± equal, > nutlets, with appressed, short, and several spreading, long, stiff, hairs (including bristles), tips with straight bristles
Fruit: nutlets 1.5–4 mm, ± obovate to ± round; margins ± entire, membranous-winged, wide on 3 nutlets, narrow on 1
Chromosomes: n=12
Ecology: Clearings in sagebrush scrub, creosote-bush scrub, pinyon/juniper woodland, grassland
Elevation: 150–2300 m.
Bioregional distribution: s Sierra Nevada, Central Western California, Southwestern California, East of Sierra Nevada, Desert
Distribution outside California: to Washington, Idaho, Utah, Arizona, n Baja California
Flowering time: Apr–May

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bioregional map for PECTOCARYA%20setosa 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 Pectocarya setosa
Retrieve dichotomous key for Pectocarya
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
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