Jepson eFlora: Taxon page
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Collinsia linearis

Higher Taxonomy
Family: PlantaginaceaeView DescriptionDichotomous Key

Habit: Annual to shrub, some aquatic. Leaf: basal or cauline, alternate or opposite (whorled), simple, entire to dentate or lobed, venation generally pinnate; stipules 0. Inflorescence: raceme, spike, or flowers axillary in 1--few-flowered clusters; flowers few to many, each subtended by 1 bract. Flower: unisexual or bisexual, radial or bilateral; sepals 4--5, generally fused at base; corolla 4--5-lobed, scarious or not, persistent or not, generally 2-lipped, upper lip generally 2-lobed, lower generally 3-lobed, spur present or not, tube sac-like at base or not; stamens 2 or 4, alternate corolla lobes, epipetalous, staminode 0 or 1--2, anthers opening by 2 slits; ovary superior, [1]2--4-chambered, style 1, stigma lobes 0 or 2. Fruit: generally a capsule, septicidal, loculicidal, circumscissile, or dehiscing by terminal slits or pores.
Genera In Family: 110 genera, +- 2000 species: worldwide, especially temperate. Note: Veronicaceae sensu Olmstead et al. Recently treated to include Callitrichaceae, Hippuridaceae, and most non-parasitic California genera of Scrophulariaceae (except Buddleja, Limosella, Mimulus, Myoporum, Scrophularia, Verbascum). California Maurandya moved to Holmgrenanthe and Maurandella. Limnophila ×ludoviciana Thieret an occasional agricultural weed in rice fields. Hebe ×franciscana (Eastw.) Souster, Hebe speciosa (R. Cunn.) Andersen only cultivated.
eFlora Treatment Author: Margriet Wetherwax, except as noted
Scientific Editor: Robert Patterson, Bruce G. Baldwin.
Genus: CollinsiaView DescriptionDichotomous Key

Habit: Annual, often glandular, sometimes brown-staining. Leaf: opposite; proximal petioled. Inflorescence: bracted, often interrupted; flowers 1--many in leaf axils. Flower: calyx lobes 5, generally glabrous on inner surface; corolla +- pea-like, uniformly pale, or generally with pale regions, especially throat and base of upper lip (+- uniformly dark in Collinsia greenei), generally glabrous outside, tube short, throat +- angled to tube, +- pouched on upper side, lips generally +- = throat, upper lobes 2, +- reflexed, lower lobes 3, lateral spreading, central lobe keeled, enclosing stamens and style; stamens 4, attached unequally near throat base, spur at base of upper filaments > 1 mm, vestigial, or 0; staminode gland-like; style > 2 mm, stigma minutely 2-lobed. Fruit: septicidal and loculicidal (valves 2-lobed). Seed: generally few, +- oblong, generally plump; inner surface +- concave.
Species In Genus: +- 20 species: North America, especially California. Etymology: (Zaccheus Collins, Philadelphia botanist, 1764--1831) Note: Late-season flowers generally atypically small.
eFlora Treatment Author: Michael S. Park & Elizabeth Chase Neese

Collinsia linearis A. Gray
Habit: Plant 10--40 cm. Leaf: generally > 6 × longer than wide, +- linear, margins rolled under. Inflorescence: open, finely scaly and spreading-glandular-hairy; bracts > 2 mm; pedicels generally 1--3(5) per node, > calyx, ascending. Flower: calyx +- = fruit, lobe tips blunt; corolla generally 8--12(15) mm, >> 2 × calyx, white to blue-purple, throat strongly angled to tube, as wide as long, pouch +- square, prominent, upper lip with projections bulging +- 0.5 mm away from throat opening at base of each lobe; upper filaments hairy at base, basal spur 0--0.5 mm. Seed: 3--4(+), +- plump, generally unwinged. Chromosomes: n=7.
Ecology: Open conifer forest; Elevation: 200--2000 m. Bioregional Distribution: KR, n NCoRO; Distribution Outside California: southern Oregon. Flowering Time: May--Jul Note: Plants on metamorphic rocky slopes in central SNH with 2 seeds/fruit treated as Collinsia linearis in TJM (1993) not yet described.
eFlora Treatment Author: Michael S. Park & Elizabeth Chase Neese
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Previous taxon: Collinsia heterophylla var. heterophylla
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botanical illustration including Collinsia linearis


Citation for this treatment: Michael S. Park & Elizabeth Chase Neese 2016. Collinsia linearis, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on October 27, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on October 27, 2016.

Collinsia linearis
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© 2009 Julie Kierstead Nelson
Collinsia linearis
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© 2008 Keir Morse
Collinsia linearis
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© 2004 George W. Hartwell
Collinsia linearis
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© 2008 Keir Morse
Collinsia linearis
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© 2016 Keir Morse
Collinsia linearis
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© 2008 Keir Morse

More photos of Collinsia linearis in CalPhotos

Geographic subdivisions for Collinsia linearis:
KR, n NCoRO;
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

View elevation by latitude chart
Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.