Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California

  • Up-to-date information about California vascular plants is available from the Jepson eFlora.



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.


Noel H. Holmgren

Subshrub or shrub
Stem wand-like to much-branched
Leaves drought-deciduous, ± opposite or in 3's, generally short-petioled
Inflorescence: panicle or spike-like; bracts small
Flower: calyx lobes 5, ± equal; corolla not purplish (whitish to red), short-glandular outside, upper lip hooded, lobes short, rounded, external in bud, lower lip rounded, lobes often reflexed; filaments densely nonglandular-hairy at base, anthers small, glabrous, anther sacs generally spreading flat at dehiscence; staminode well developed, glabrous to densely bearded; nectary a disk; stigma head-like
Fruit ovoid, septicidal and sometimes also loculicidal at tip
Seeds many, irregularly angled or ± winged
Species in genus: 7 species: especially CA
Etymology: (David D. Keck, CA botanist, 1903–1995)
Reference: [Straw 1966 Brittonia 18:80–95]
Segregated from Penstemon.


K. rothrockii (A. Gray) Straw

Plant wide, low, 3–6 dm
Stem densely short-hairy; young stems green
Leaves subopposite or in 3's, subsessile; main leaves 5–16 mm, (ob)lanceolate to widely obovate, entire or finely serrate towards tip
Inflorescence short-hairy
Flower: calyx 4–7 mm, sometimes glandular, lobes lanceolate; corolla 11–16 mm, brownish yellow, pale yellow, or cream, purple- or reddish brown-lined, tube + expanded throat 7–11 mm, upper lip 4–5 mm; anther sacs 0.8–1.1 mm, barely spreading at dehiscence; staminode glabrous distally, ± included
Ecology: Sagebrush steppe, pinyon/juniper woodland
Elevation: 1900–3200 m.
Bioregional distribution: San Jacinto Mountains, East of Sierra Nevada, Desert Mountains
Distribution outside California: Nevada


var. rothrockii

Leaf canescent
Flower: corolla 10–12 mm, becoming glabrous
Ecology: Habitats and elevations of sp.
Bioregional distribution: East of Sierra Nevada, Desert Mountains
Distribution outside California: Nevada
Horticultural information: TRY.

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bioregional map for KECKIELLA%20rothrockii%20var.%20rothrockii being generated

Retrieve Jepson Interchange Index to Plant Names entry for Keckiella rothrockii var. rothrockii
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