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.



Richard R. Halse, except as specified; Robert W. Patterson, Family Editor

Annual, perennial herb, shrub, generally hairy, generally taprooted
Stem prostrate to erect
Leaves simple to pinnately compound, basal or cauline, alternate or opposite; stipules 0
Inflorescence: cyme (generally raceme-like and coiled) or flowers solitary
Flower bisexual, generally radial; calyx lobes generally 5, generally fused at base, generally persistent, enlarging in fruit; corolla generally deciduous, rotate to cylindric, lobes generally 5, appendages in pairs on tube between filaments or 0; stamens generally 5, epipetalous, filament base sometimes appendaged, appendages scale-like; ovary generally superior, chamber 1, placentas 2, parietal, enlarged into chamber, sometimes meeting so ovary appears 2–5-chambered, styles 1–2, stigmas generally head-like
Fruit: capsule, generally loculicidal; valves generally 2
Genera in family: 20 genera, 300 species: especially w US; some cultivated (Emmenanthe, Nemophila, Phacelia )
Recent taxonomic note: Recently treated to be included in an expanded Boraginaceae (also including Lennoaceae) [Angiosperm Phylogeny Group 1998 Ann Missouri Bot Gard 85:531–553; Olmstead et al. 2000 Mol Phylog Evol 16:96–112]


Species in genus: 1 sp
Etymology: (Greek: abiding flower, from persistent corolla)


E. penduliflora Benth.


Annual, glandular, sticky, odorous
Stem erect, simple to many-branched, 5–85 cm
Leaves simple, basal, cauline, alternate; lower short-petioled; upper sessile, generally clasping, 1–12 cm, generally < 3 cm wide, toothed to deeply pinnately lobed
Inflorescence terminal; pedicels 5–15 mm in flower, 12–25 mm in fruit, thread-like, recurved
Flower: calyx lobes 4–11 mm, 1–4 mm wide, lanceolate, glandular; corolla persistent, withering, enclosing fruit, 6–15 mm, bell-shaped, white, yellow, or pink, hairy, glandular; stamens included; ovary chambers 2, style included, lobes 2, 1–4 mm
Fruit 7–10 mm, 2–4 mm wide, glandular
Seeds 6–15, flat, oval, brown; surface honeycombed
Chromosomes: n=18
Ecology: Dry, open slopes, common after burns, disturbances
Elevation: < 2200 m.
Bioregional distribution: High North Coast Ranges, Inner North Coast Ranges, c&s Sierra Nevada, San Joaquin Valley, Central Western California, Southwestern California, East of Sierra Nevada, Desert
Distribution outside California: to Nevada, Utah, Arizona


var. penduliflora

Flower: corolla yellow to cream
Ecology: Chaparral to creosote-bush scrub, rocky, sandy, decomposed granite, serpentine soils
Elevation: < 2200 m.
Bioregional distribution: High North Coast Ranges, Inner North Coast Ranges, c&s Sierra Nevada, San Joaquin Valley, Central Western California, Southwestern California, East of Sierra Nevada, Desert
Flowering time: Apr–Jul
Horticultural information: DRN, DRY: 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23 &SUN: 6, 17, 24.

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bioregional map for EMMENANTHE%20penduliflora%20var.%20penduliflora 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 Emmenanthe penduliflora var. penduliflora
Retrieve dichotomous key for Emmenanthe
Overlay Consortium of California Herbaria specimen data by county on this map
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