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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James S. Pringle (except as specified)

Annual, perennial herb
Stem decumbent to erect, < 2 m
Leaves simple, cauline (sometimes also basal), opposite or whorled, entire, sessile or basal ± petioled; stipules 0
Flower bisexual, radial, parts in 4's or 5's, except pistil 1; sepals fused, persistent; petals fused, persistent or deciduous, corolla generally without fringes or scales on inner surface, sinuses between lobes generally unappendaged; stamens epipetalous, alternate corolla lobes; ovary superior, chamber 1, placentas parietal, often intruding
Fruit: capsule, 2-valved
Seeds many
Genera in family: ± 80 genera, 900 species: worldwide; some cultivated (Eustoma , Exacum , Gentiana )
Reference: [Wood & Weaver 1982 J Arnold Arbor 63:441–487]



Annual, short-lived perennial herb, glabrous, ± glaucous
Stem erect, branched
Leaves basal and cauline, opposite, clasping
Inflorescence: cyme or flowers solitary
Flower: parts in 5's; calyx lobed ± to base, lobes linear, narrowly keeled, acuminate; corolla > 2 cm, bell-shaped, lobes >> tube, nectary pits 0; nectaries at base of ovary; ovary sessile, style distinct, slender, stigma 2-lobed
Species in genus: 2 weakly differentiated species: North America, C.Am, West Indies
Etymology: (Greek: beautiful mouth, from corolla tube)


E. exaltatum (L.) Don

Plant 1.5–10 dm
Leaves: basal 2–10 cm, spoon-shaped-obovate to elliptic-oblong, obtuse; cauline 1.5–9 cm, elliptic to lanceolate, ± obtuse, upper acute
Inflorescence: pedicels 2–14 cm
Flower: calyx 10–21 mm; corolla 2–4.5 cm, pale to deep violet-blue, rarely rose-violet or white, throat whitish with dark purple blotches, lobes elliptic to obovate, rounded to subacute
Chromosomes: 2n=±72
Ecology: Roadsides, alkaline marshes, other open, wet places
Elevation: 100–600 m.
Bioregional distribution: South Coast, Peninsular Ranges, Sonoran Desert
Distribution outside California: to se US, C.America, West Indies
Flowering time: Most of year
Horticultural information: IRR, SUN: 7, 8, 9, 13, 14, 16, 17, 19, 20, 21, 22, 23, 24.

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bioregional map for EUSTOMA%20exaltatum 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 Eustoma exaltatum
Retrieve dichotomous key for Eustoma
Overlay Consortium of California Herbaria specimen data by county on this map
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