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
For up-to-date information about California vascular plants, visit the Jepson eFlora.

OROBANCHACEAE

BROOM-RAPE FAMILY

Lawrence R. Heckard

Annual, perennial herb, non-green root-parasites; roots modified into absorptive structures; plant an erect, fleshy, mostly underground stem (peduncle) with terminal inflorescence
Leaf: true leaves 0
Inflorescence: spike, raceme, or panicle; bracts alternate, scale-like
Flower bisexual; calyx cylindric or cup-shaped, lobes 0–5, persistent; corolla ± 2-lipped, lobes generally 5; stamens 4, epipetalous in 2 pairs (sometimes a 5th vestigial); ovary superior, chamber 1, placentas generally 2–4, parietal, simple or lobed, stigma generally 2–4-lobed, generally bowl- to funnel-shaped
Fruit: capsule, loculicidal; valves 2–4
Seeds many, small, angled; surface netted
Genera in family: 14 genera, 200 species: especially n temp
Reference: [Thieret 1971 J Arnold Arbor 52:404–432]
Recent taxonomic note: Recently treated to include hemiparasitic genera of Scrophulariaceae (e.g., Castilleja, Cordylanthus, Orthocarpus, Pedicularis, Triphysaria [Olmstead et al. 2001 Mol Phylogen Evol 16:96–112]
.

OROBANCHE

BROOM-RAPE

Annual, perennial herb, generally glandular-puberulent above; root attachment sometimes tuber-like
Stem simple or branched
Inflorescence generally ± spike-like (lower flowers often short-pedicelled or on short branches), generally dense; flowers generally > 20; bracts generally lanceolate to deltate (wider on peduncle); bractlets 0 or 2
Flower: calyx lobes generally 4–5; corolla glandular-puberulent (hairs short and tack-shaped or long-stalked), generally lacking ring of hairs at stamen bases, upper lip erect to reflexed, generally 2-lobed, lower lip 3-lobed, spreading, yellow-lined; anthers glabrous to hairy; stigma lobes 2, spreading or peltate
Fruit 2-valved; placentas generally 2 or 4, often lobed
Seed < 0.7 mm
Species in genus: 140 species: worldwide, especially Medit
Etymology: (Greek: vetch strangler, from parasitic habit)
Reference: [Heckard 1973 Madroño 22:41–70]

Native

O. vallicola (Jeps.) Heckard

Plant 8–40 cm, pale to pinkish, glandular-puberulent
Stem stout; base generally thickened, single or branched at base and above
Inflorescence > 4 cm, sometimes branched from base into raceme-like units; bracts narrowly triangular, veins 3–5, inconspicuous; pedicels short
Flower: calyx 8–15 mm, pale or pinkish; corolla 17–30 mm, yellowish to pinkish, lips 5–9 mm, upper lobes triangular with pointed tip, veins generally reddish; anthers glabrous to hairy; stigma 2-lobed, margins recurved
Chromosomes: 2n=48
Ecology: Uncommon. Woodlands, forest openings, generally on Sambucus
Elevation: < 300 m.
Bioregional distribution: North Coast Ranges, Cascade Range Foothills, Great Central Valley, Central Western California, South Coast (Los Angeles Co.)
Synonyms: O. californica vars. californica and claremontensis Munz misapplied
Difficult to separate from O. californica subsp. jepsonii.

previous taxon | next taxon
bioregional map for OROBANCHE%20vallicola 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 Orobanche vallicola
Retrieve dichotomous key for Orobanche
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
Return to the Jepson Interchange main page
Return to treatment index page
Glossary
    FEEDBACK
  • This page is no longer being maintained.


University & Jepson Herbaria Home Page |
General Information | University Herbarium | Jepson Herbarium |
Visiting the Herbaria | On-line Resources | Research |
Education | Related Sites
Copyright © by the Regents of the University of California