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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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.



Margriet Wetherwax

Annual to perennial herb, generally glabrous
Stem ascending to erect, simple or branched at base
Leaves generally opposite or whorled (or upper alternate), sessile, simple, linear to ovate, generally wider on non-flower shoots, entire to dentate, pinnately veined
Inflorescence: spike or raceme, terminal; bracts reduced, alternate
Flower: calyx lobes 5, deep, ± equal; corolla 5-lobed, 2-lipped, lower side of tube spurred at base, lower side of throat swollen, ± hairy, ± closing corolla below lips; stamens 4, in 2 pairs, included; stigma small, head-like or lobes 2, flat
Fruit ± spheric, opening by slits into chambers near tip
Seeds many, flat and winged or pyramid-like and ± ridged
Species in genus: ± 100 species: especially Eurasia; many cultivated
Etymology: (Latin: flax, from flax-like leaves of some)
Corolla length includes spur.


L. vulgaris Mill.


Stem 30–100 cm, ascending to erect, simple or not
Leaves crowded, 25–50 mm, linear, glabrous to sparsely soft-shaggy-hairy
Inflorescence: raceme, dense, ± glandular-hairy; pedicel 1–4 mm
Flower: calyx lobes ± 3 mm, unequal; corolla 18–32 mm, yellow, lower lip orange-hairy
Fruit 9–12 mm
Seed 1.5 mm, flat, winged
Chromosomes: 2n=12
Ecology: Disturbed places
Elevation: generally < 1000 m.
Bioregional distribution: California Floristic Province
Distribution outside California: widely naturalized elsewhere; native to Mediterranean

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bioregional map for LINARIA%20vulgaris 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 Linaria vulgaris
Retrieve dichotomous key for Linaria
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
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