Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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Dieter H. Wilken

Shrub, tree, or vine, some dioecious
Leaves alternate or opposite, deciduous or evergreen, simple to pinnately compound
Inflorescence various; flower sometimes solitary
Flower sometimes unisexual, generally radial; calyx generally minute, tube cup-shaped, lobes 4–15; petals (0)4–6, generally fused; stamens generally 2, epipetalous; pistil 1, ovary superior, chambers 2, placentas axile, ovules 2–4 per chamber, style 1, stigma generally 2-lobed
Fruit: drupe, capsule, or winged achene
Seed 1 per chamber
Genera in family: ± 25 genera, 900 species: ± worldwide; some cultivated for ornamental (Forsythia ; Jasminum , jasmine; Ligustrum , privet; Syringa , lilac) or food (Olea )
Reference: [Wilson & Wood 1959 J Arnold Arbor 40:369–384]


Shrub, generally dioecious
Leaves simple, opposite or clustered, generally deciduous, short-petioled
Inflorescence: clusters, axillary; staminate flowers subsessile; pistillate flowers pedicelled
Flower: calyx minute, minutely ± 4-lobed, deciduous; corolla 0
Staminate flower: stamens 1–4; pistil vestigial
Pistillate flower: stamens 0; ovules 2 per chamber, stigma 1–2-lobed
Fruit: drupe
Species in genus: ± 20 species: Am
Etymology: (Charles Le Forestier, French physician & naturalist, early 19th century)


F. pubescens Nutt.


Shrub 5–25 dm
Stem: bark smooth, grayish; twigs short, spine-like, puberulent, becoming glabrous
Leaf: blade 15–40 mm, lanceolate to elliptic, leathery, entire to minutely toothed, glabrous
Inflorescence generally appearing before leaves
Staminate flower: stamens 3–6 mm
Fruit 5–8 mm, elliptic in outline, purple-black, ± glaucous
Chromosomes: 2n=46
Ecology: Streambanks, canyons, washes
Elevation: 100–1800 m.
Bioregional distribution: s Sierra Nevada Foothills, c&s High Sierra Nevada (eastern slope), Tehachapi Mountain Area, eastern San Francisco Bay Area, Outer South Coast Ranges (eastern slope), Inner South Coast Ranges, Transverse Ranges, Peninsular Ranges, s East of Sierra Nevada, Mojave Desert
Distribution outside California: to Colorado, Texas, n Mexico
Flowering time: Mar–Apr
Synonyms: F. neomexicana A. Gray
Horticultural information: 1, 7, 14, 15, 16, 17, 22, 23, 24 IRR: 2, 3, 8, 9, 10, 11, 12, 13, 18, 19, 20, 21.

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bioregional map for FORESTIERA%20pubescens 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 Forestiera pubescens
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