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Vascular Plants of California
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Aphyllon tuberosum


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: +- 100 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 W. 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.
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 tuberosum (A. Gray) A. Gray
NATIVE
Habit: Plant 8--30 cm, dark +- purple above ground, white-papillate, not glandular. Stem: arising from round, coral-like root attachment, stout, thickened at base, bulb-like, with overlapping scales. Inflorescence: occasionally pyramid-shaped; pedicel < 2(5) cm, bractlets 2. Flower: calyx 6--10 mm, tube cut nearly to base on lower side, lobes narrowly triangular, generally <= tube; corolla 10--18 mm, +- yellow to +- purple, lobes 2--4 mm, obtuse to acute; anthers glabrous to sparsely hairy; stigma 2-lobed, margins recurved. Chromosomes: 2n=48.
Ecology: Openings in chaparral, generally on Adenostoma fasciculatum; Elevation: < 1700 m. Bioregional Distribution: s NCoRO, NCoRI, CaR, SN, SnFrB, SCoRO, SW; Distribution Outside California: Baja California. Flowering Time: Apr--Jun
Unabridged Synonyms: Orobanche bulbosa Beck
Jepson eFlora Author: Adam C. Schneider & Alison E.L. Colwell
Reference: Schneider 2016 Phytokeys 75:107--118.
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

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Citation for this treatment: Adam C. Schneider & Alison E.L. Colwell 2022, Aphyllon tuberosum, in Jepson Flora Project (eds.) Jepson eFlora, Revision 11, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=13614, accessed on April 16, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 16, 2024.

Aphyllon tuberosum
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©2021 Vernon Smith
Aphyllon tuberosum
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©2021 Barry Rice
Aphyllon tuberosum
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©2021 Barry Rice

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Geographic subdivisions for Aphyllon tuberosum:
s NCoRO, NCoRI, CaR, SN, SnFrB, SCoRO, SW
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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).





 

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, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time (fruiting time in some monocot genera).