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OROBANCHACEAE BROOMRAPE FAMILY

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

BELLARDIA
Annual, glandular-hairy. Stem: erect, generally simple. Leaf: opposite distally on stem, sessile, toothed. Inflorescence: raceme, spike-like, bracted. Flower: calyx 4-lobed; corolla 2-lipped, upper lip hood-like, pink, lower lip > upper, white, 3-lobed, throat with 2 ridges; stamens 4, in 2 pairs, included, anthers hairy, awned at base; stigma club-shaped, ± exserted. Fruit: ovoid, loculicidal. Seed: many, small, ridged.
1–2 species: Mediterranean. (C.A.L. Bellardi, Italian botany professor, 1740–1826) [Molau 1990 Opera Bot 102:27]

B. trixago (L.) All. MEDITERRANEAN LINSEED
NATURALIZED
Plant glandular-hairy. Stem: occasionally branched distally, 15–80 cm. Leaf: 15–90 mm, lanceolate, coarsely crenate-dentate. Inflorescence: bracts reduced distally on inflorescence axis, becoming ovate, cordate, ± entire. Flower: calyx 8–10 mm, lobes 1–1.5 mm, unequal, triangular; corolla 20–25 mm. Fruit: ± 7 mm. Seed: 0.5–1 mm, ± oblong.
2n=24. Disturbed grassland; < 710 m. North Coast, Outer North Coast Ranges, Sacramento Valley, Central Western California; native to Mediterranean. Apr–Jun {Weed listed by Cal-IPC} [Online Interchange]

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Jul 25 2014
Citation for this treatment: [Author of taxon treatment] 2013. Bellardia, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=15566, accessed on Jul 25 2014

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click for enlargement Bellardia trixago
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© 1995 Saint Mary's College of California

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