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• Conservation Status
• Taxonomy
• Physical Description
• Distribution
• Similar Species
• Bibliography
• More Info
• Notes
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Overview:

Threatened

Conservation Status

NatureServe: G2G3 VulnerableImperiled

Taxonomy

Unambiguous Synonyms:

1. Orobanche californica var. claremontensis Munz

Notes:

Name Status: Accepted Name. Latest taxonomic scrutiny: 15-Mar-2000

Physical Description

Family Orobanchaceae:

Herbs annual, biennial, or perennial parasites, without chlorophyll. Stems unbranched or sometimes branched. Leaves scalelike, spirally or subimbricately arranged. Inflorescences racemose, spicate, or subcapitate, rarely 1-flowered; bract 1, usually similar to leaves; bractlets 2, adnate to base of calyx or pedicel. Flowers bisexual, subsessile or pedicelled. Calyx tubular, cupular, or campanulate, (3 or) 4-6-lobed, 2-6-parted, 6-toothed, or spathelike, sometimes absent or of 3 free sepals. Corolla bilabiate, usually curved, sometimes tubular-campanulate or funnelform with 5 subequal lobes; upper lip entire, emarginate, or 2-lobed; lower lip 3-lobed. Stamens 4, didynamous, inserted at base of corolla tube; filaments slender; anthers 2-celled, dehiscing longitudinally, sometimes 1 cell fertile and another sterile or reduced to spur. Pistil 2- or 3-carpellate; ovary superior; placentas 2-4 or 6(-10), parietal or sometimes axile at ovary base; ovules 2-4 or numerous, anatropous. Style long; stigma inflated, discoid, peltate, or 2-4-lobed. Capsule usually dehiscing loculicidally by 2 or 3(or 4) valves. Seeds minute, testa pitted or reticulate.

About 15 genera and 150 species: North Temperate regions, less represented in Africa, America, Asia, and Australia; nine genera and 42 species (nine endemic) in China.^[1]

Genus Orobanche:

Herbs annual, biennial, or perennial, usually tomentose, villous, or glandular pubescent, rarely glabrous. Leaves spirally or imbricately arranged, ovate, ovate-lanceolate, or lanceolate. Flowers many, in spicate or racemose inflorescences, rarely solitary; bract 1, usually similar to leaves; bractlets 2 or absent. Pedicel short or absent. Calyx cupular or campanulate, apex 4-lobed or nearly 4- or 5-parted, occasionally 5- or 6-toothed, sometimes 2-parted to base and lobes entire or 2-toothed. Corolla bilabiate, curved; upper lip entire, emarginate, or 2-lobed; lower lip 3-lobed, shorter to longer than upper lip. Stamens 4, didynamous, included; filaments base pubescent or glandular pubescent. Ovary 1-locular; parietal placentas 4; ovules numerous. Style elongated, usually persistent; stigma inflated, peltate, or 2-4-lobed. Capsule ovoid-globose or ellipsoid, dehiscing by 2 valves. Seeds numerous, minute, ellipsoid or subglobose; testa reticulate.

About 100 species: mostly in North Temperate regions, less represented in S Central America and E and N Africa; 25 species in China.^[2]

Distribution

Range and Population

North America

Similar Species

Members of the genus Orobanche:

There are approximately 770 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them: O. alba major · O. alba xanthostigma · O. alsatica mayeri · O. artemisiae-campestris calendulae · O. artemisiae-campestris picridis · O. artemisiae-campestris santolinae · O. cernua cumana · O. cernua rajahmundrica · O. clausonis hesperina · O. elatior icterica · O. flava cicerbitae · O. hirtiflora zosimii · O. loricata santolinae · O. major icterica · O. purpurea bohemica · O. reticulata procera · O. 709 · O. abortiva · O. abyssinica · O. acaulis · O. aconiti-lycoctoni · O. adenostemon · O. aeginetia · O. aegyptiaca (Egyptian Broomrape) · O. aegyptica · O. aemula · O. akiana · O. alba · O. alba f. sineglandulosa · O. alba subsp. major · O. alba subsp. xanthostigma · O. albiflora · O. albolanata · O. alectra · O. alexandri · O. almeriensis · O. alostensis · O. alpestris · O. alpigena · O. alsatica · O. alsatica subsp. mayeri · O. altissima · O. ambigua · O. amethystea · O. amethystea amethystea · O. amethystea castellana · O. amethystina · O. ammophila · O. amoena · O. amoena f. parviflora · O. amurensis · O. anatolica · O. androssovii · O. angelicifixa · O. angustelaciniata · O. angustiflora · O. angustisepala · O. annulata · O. antirrhina · O. apiculata · O. arachnoidea · O. aralioctona · O. arbuti · O. arcuata · O. arenaria · O. arenaria var. euxina · O. ariana · O. armena · O. artemisae-vulgaris · O. artemisi-epiphyta · O. artemisiae · O. artemisiae-campestris · O. artemisiae-campestris subsp. calendulae · O. artemisiae-campestris subsp. picridis · O. artemisiae-campestris subsp. santolinae · O. artemisii-campestris · O. artemisiophya · O. arvensis · O. asiatica · O. astragali · O. astragalorum · O. atropurpurea · O. atrorubens · O. attica · O. auranitica · O. australiana · O. australis · O. austrohispanica · O. avellanae · O. badchysensis · O. balearica · O. ballotae · O. banatica · O. barbata · O. bartlingii · O. baumanniorum · O. baumanniorum var. longebracteata · O. benkertii · O. benthami · O. berberidis

Bibliography

• Zhang Zhiyun. 1990. Orobanchaceae. In: Wang Wentsai, ed., Fl. Reipubl. Popularis Sin. 69: 69-124.

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Notes

Contributors:

• Global Biodiversity Information Facility. Accessed February 03, 2008. http://www.gbif.org Mediated distribution data from 4 providers.

Data Sources:

Accessed through GBIF Data Portal February 03, 2008:

• Berkeley Natural History Museums, University and Jepson Herbaria DiGIR provider
• USDA PLANTS, USDA PLANTS Database
• University of Washington Burke Museum, Vascular Plant Collection - University of Washington Herbarium

Identifiers:

• Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 34304
• Global Biodiversity Information Facility Taxonkey: 274038
• Natural Heritage Network Species Identifier: PDORO040H0
• U.S.D.A. Plant Symbol: ORCAC5
• Zipcode Zoo Species Identifier: 49107

Footnotes:

1. Zhi-Yun Zhang & Nikolai N. Tzvelev "Orobanchaceae". in Flora of China Vol. 18 Page 229. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org.
2. "Orobanche". in Flora of China Vol. 18 Page 231. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org.