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Key to families | Table of families and genera

Previous taxon Indexes to all accepted names and synonyms:
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Margriet Wetherwax, except as noted

Annual, perennial herb, shrub; often glandular; root-parasites, roots modified into absorptive structures. Stem: generally round in ×-section. Leaf: generally simple, generally alternate, reduced to ± fleshy scales in non-green plants lacking chlorophyll; stipules generally 0. Inflorescence: spike to panicle, generally bracted, or flowers 1–2 in axils. Flower: bisexual; calyx lobes 0–5; corolla generally strongly bilateral, generally 2-lipped (upper lip generally 2-lobed, lower lip generally 3-lobed), abaxial lobes outside other lobes in bud; stamens epipetalous, 4 in 2 pairs (sometimes 1 pair sterile), additional staminode 0(1), anther sacs unequal; ovary superior, chambers 1–2, placentas 2–4, parietal, style 1, stigma lobes 0 or 2. Fruit: capsule, generally ± ovoid, loculicidal, valves 2–4. Seed: many, small, angled; surface smooth or netted.
99 genera, 2060 species: worldwide, especially northern temperate and Africa. [Bennett & Matthews 2006 Amer J Bot 93:1039–1051] High yield losses in many crops caused by Orobanche species in Africa, Mediterranean, Middle East, and eastern Europe. —Scientific Editors: Robert Patterson, Bruce G. Baldwin.

Key to Orobanchaceae


Linda Ann Vorobik

Perennial herb, ± green. Stem: decumbent to erect, generally 1–several from generally short caudex. Leaf: alternate, generally ± basal, generally < inflorescence, toothed or generally > 7-lobed, generally reduced distally on stem; petiole generally < blade. Inflorescence: raceme, spike-like; bracts (at least proximal) generally ± like distal leaves; pedicels 1–6 mm. Flower: calyx lobes (2,4)5, distal-most generally shortest (all generally < tube), lateral fused in pairs; corolla white or yellow to red or purple, upper lip hood- or beak-like, curved or not, lower lip 3-lobed, narrow to fan-shaped, central lobe generally smallest; fertile stamens 4, generally glabrous, anthers generally included, sacs 2 per stamen, equal; stigma head-like, generally exserted. Fruit: generally ± ovate or lanceolate in outline, asymmetric, opening mostly on upper side. Seed: smooth or netted.
± 500 species: cool wet northern temperate, circumboreal, South America. (Latin: lice, from belief that ingestion by stock promoted lice infestation) [Ree 2005 Int J Plant Sci 166:595–613]

Key to Pedicularis

P. racemosa Benth. LEAFY LOUSEWORT
Stem: few to many, ± decumbent, generally branched distally, 12–80 cm, subglabrous. Leaf: cauline, 2–10 cm, ± narrowly lanceolate, serrate to dentate. Inflorescence: 1–5 cm; proximal bracts >= flowers. Flower: calyx 4.5–8 mm, glabrous, lobes generally 2 (4 in some plants); corolla 10–16 mm, ± white, ± yellow, or ± purple, glabrous, upper lip 5–7.5 mm, extended in a long, down-curved beak, lower lip 5–9 mm, fan-like; anthers 1.5–2.5 mm, base acute. Fruit: 10–16 mm, ± lanceolate in outline. Seed: 1.5–3 mm, smooth.
Open conifer forest; 900–2300 m. Klamath Ranges, Cascade Range, n High Sierra Nevada, East of Sierra Nevada; to western Canada, Wyoming, New Mexico. If recognized taxonomically, plants eastern of California Floristic Province with linear leaves, ± white to ± yellow corollas assignable to Pedicularis racemosa subsp. alba Pennell. Jun–Aug [Online Interchange]
Unabridged note: Expanded author citation: Pedicularis racemosa Douglas ex Benth.

Previous taxon: Pedicularis howellii
Next taxon: Pedicularis semibarbata


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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora,, accessed on Nov 24 2015
Citation for this treatment: [Author of taxon treatment] 2013. Pedicularis, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on Nov 24 2015

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Geographic subdivisions indicated for the distribution of Pedicularis racemosa Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.