Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora.

SCROPHULARIACEAE

FIGWORT FAMILY

Lawrence R. Heckard, Family Coordinator

Annual to shrubs, generally glandular, some green root-parasites
Stem generally round
Leaves generally alternate, simple, generally ± entire; stipules generally 0
Inflorescence: spike to panicle, generally bracted, or flowers 1–2 in axils
Flower bisexual; calyx lobes generally 5; corolla generally strongly bilateral, generally 2-lipped (upper lip generally 2-lobed, lower lip generally 3-lobed); stamens generally 4 in 2 pairs, generally included, a 5th (generally uppermost) sometimes present as a staminode; pistil 1, ovary superior, chambers generally 2, placentas axile, style 1, stigma lobes generally 2
Fruit: capsule, generally ± ovoid, loculicidal or septicidal
Seed: coat sculpture often characteristic
Genera in family: ± 200 genera, 3000 species: ± worldwide; some cultivated as ornamental (e.g., Antirrhinum, Mimulus, Penstemon ) or medicinal (Digitalis )
Recent taxonomic note: Recently treated to include only Buddleja, Scrophularia, and Verbascum in CA; other genera moved to Orobanchaceae (Castilleja, Cordylanthus, Orthocarpus, Pedicularis, Triphysaria), Phrymaceae (Mimulus), and Plantaginaceae (= Veronicaceae sensu Olmstead et al.)
Key to genera by Elizabeth Chase Neese & Margriet Wetherwax.

MOHAVEA

David M. Thompson

Annual, hairy
Stem erect; branches 0 or few
Leaves alternate, widely lanceolate, entire; veins pinnate
Inflorescence crowded; flowers solitary in axils
Flower: calyx lobes 5, ± equal; corolla tube with sac-like extension at base, lips flaring, ± fan-shaped, lower lip base swollen, closing mouth; stamens 2, included, staminodes 2
Fruit obliquely ovoid, fragile; chambers dehiscent by 1–2 large pores near tip
Seeds ovate, flat, smooth; wing incurved, ± cup-shaped
Species in genus: 2 species: sw US, n Mex
Etymology: (Mojave River, where first collected by John Frémont)

Native

M. breviflora Coville

Plant 5–20 cm
Inflorescence: pedicel 2–5 mm
Flower 15–20 mm; corolla dark yellow, lower lip lobed to within 2–3 mm of swollen base, maroon-spotted only on swollen base
Fruit 8–10 mm
Chromosomes: n=15
Ecology: Gravelly desert slopes, washes
Elevation: 100–1400 m.
Bioregional distribution: n&e Mojave Desert
Distribution outside California: s Nevada, nw Arizona
Flowering time: Mar–Apr
Horticultural information: TRY; DFCLT.

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bioregional map for MOHAVEA%20breviflora being generated
 
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Mohavea breviflora
Retrieve dichotomous key for Mohavea
Overlay Consortium of California Herbaria specimen data by county on this map
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