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Vascular Plants of California
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Aphyllon vallicolum


Higher Taxonomy
Family: OrobanchaceaeView DescriptionDichotomous Key
Common Name: BROOMRAPE FAMILY
Habit: 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.
Genera In Family: 101 genera, 2060 species: worldwide, especially northern temperate and Africa. Note: High yield losses in many crops caused by Orobanche and Phelipanche species in Africa, Mediterranean, Middle East, and eastern Europe. Taxa of Orobanche in TJM2 treated here in Aphyllon and Phelipanche.
eFlora Treatment Author: Margriet Wetherwax, except as noted
Scientific Editor: Robert Patterson, Bruce G. Baldwin.
Genus: AphyllonView DescriptionDichotomous Key


Common Name: BROOMRAPE
Habit: Annual, perennial herb, not green (holoparasites), generally glandular-puberulent distally; root attachment occasionally tuber-like. Stem: simple or branched. Inflorescence: generally +- spike-like (proximal flowers often short-pedicelled or on short branches) and dense, or clusters of erect pedicelled flowers; bracts generally lanceolate to deltate (wider on peduncle); bractlets 0 or 2. Flower: calyx lobes 5; corolla glandular-puberulent, generally lacking ring of hairs at stamen bases, upper lip erect to reflexed, 2-lobed, lower lip 3-lobed, spreading, throat floor with yellow folds; anthers glabrous to hairy; stigma lobes generally 2. Fruit: 2-valved; placentas generally 2, often lobed, style persistent. Seed: < 1 mm.
Species In Genus: 22 species: North America, South America. Etymology: (Greek: without leaf)
eFlora Treatment Author: Adam C. Schneider & Alison E.L. Colwell
Reference: Schneider 2016 Phytokeys 75:107--118.
Unabridged Reference: Heckard 1973 Madroño 22:41--70.
Aphyllon vallicolum (Jeps.) A.C. Schneid.
NATIVE
Habit: Annual or perennial herb, 8--40 cm. Stem: stout; yellow with rosy tinge, glandular-puberulent; base generally thickened, single or multiple-branched from base. Inflorescence: > 4 cm, occasionally of > 1 raceme; bracts lanceolate, veins 3--5, inconspicuous; pedicels < 2 cm, bractlets 2. Flower: calyx 8--15 mm, pale or +- pink; corolla 17--30 mm, +- yellow to pink, with pink veins (pale in contrast to stem); lips 5--9 mm, lobes narrowly acute, strongly recurved in mature flowers; anthers glabrous to hairy; stigma 2-lobed, margins recurved. Chromosomes: 2n=48.
Ecology: Riparian woodland, on Sambucus nigra; Elevation: < 300 m. Bioregional Distribution: NCoR, CaRF, GV, CW, PR. Flowering Time: Jul--Sep Note: Stem base may be large, woody in perennial plants, with past years' black stalks evident. Plants with hosts other than Sambucus nigra that key here are undescribed taxa (e.g., SNE on Ericameria; PR on Solidago).
Unabridged Synonyms: Orobanche californica var. californica, misappl.; Orobanche californica var. claremontensis Munz, misappl.; Orobanche vallicola (Jeps.) Heckard
Jepson eFlora Author: Adam C. Schneider & Alison E.L. Colwell
Reference: Schneider 2016 Phytokeys 75:107--118.
Unabridged Reference: Heckard 1973 Madroño 22:41--70.
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Citation for this treatment: Adam C. Schneider & Alison E.L. Colwell 2017, Aphyllon vallicolum, in Jepson Flora Project (eds.) Jepson eFlora, Revision 5, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=103315, accessed on September 16, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on September 16, 2019.

Aphyllon vallicolum
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© 2019 Dana York
Aphyllon vallicolum
click for enlargement
© 2019 Dana York
Aphyllon vallicolum
click for enlargement
© 2019 Dana York

More photos of Aphyllon vallicolum in CalPhotos



Geographic subdivisions for Aphyllon vallicolum:
NCoR, CaRF, GV, CW, PR.
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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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Duplicates counted once; synonyms included.
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Blue line denotes eFlora flowering time.