Compilation
Androsace septentrionalis

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Name

Identification
Androsace pinetorum Greene [family PRIMULACEAE ] Verified by Not on sheet, Androsace septentrionalis L. [family PRIMULACEAE ] (stored under name); Verified by Not on sheet, 1944
Related name
  • Androsace diffusa
  • Androsace septentrionalis
  • Androsace gormanii
  • Androsace indet.
  • Androsace pinetorum
  • Androsace elongata
Common name
  • California rock jasmine, Flora of North America Vol. 8
  • rock jasmine, Flora of North America Vol. 8
  • androsace septentrionale, Flora of North America Vol. 8
  • Pygmyflower, Flora of North America Vol. 8

Flora

Entry for Androsace elongata Linnaeus subsp. acuta (Greene) G. T. Robbins [family PRIMULACEAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 8,
Names
Androsace elongata Linnaeus subsp. acuta (Greene) G. T. Robbins [family PRIMULACEAE], Amer. Midl. Naturalist, 32: 154. 1944 ,
Androsace acuta Greene [family PRIMULACEAE], Man. Bot. San Francisco, 238. 1894
Androsace asprella Greene [family PRIMULACEAE]
Androsace occidentalis Pursh var. acuta (Greene) Jepson [family PRIMULACEAE]
Androsace septentrionalis Linnaeus var. subulifera A. Gray [family PRIMULACEAE]
Treatment Author(s)
Sylvia Kelso
Information
Plants annual, slender, not mat-forming. Leaves in single rosette; petiole absent; blade linear-lanceolate, 5–20 × 2–4 mm, base not narrowing to stem, margins ciliate, surfaces minutely hairy, hairs straight. Scapes usually 1, 2–8 cm, hairy to glabrescent. Inflorescences 2–6-flowered; involucral bracts ovate to lanceolate, relatively broad. Pedicels arcuate, slender, unequal, 0.6–6 cm. Flowers: calyx campanulate, without prominent ridges, 3–5 mm, lobes stiffly erect, subulate, apex prominently acute; corolla tube shorter than calyx, limb to 3 mm diam. Capsules slightly shorter than calyx, 2–5 mm. 2n = 40.
Phenology
Flowering early–mid summer
Altitude range
100–1200 m
Distribution
Mexico (Baja California).USA Calif.USA Nev.USA Oreg.
Discussion
Androsace elongata occurs across Eurasia. Subspecies acuta is found only on the very western portion of North America and differs only slightly from European plants, primarily in its narrower calyx lobes. Androsace elongata in the broad sense is very similar to A. septentrionalis, differing primarily in leaf indumentum and higher chromosome number. Molecular analyses may determine if the California taxon represents a disjunct population of the Eurasiatic A. elongata complex or, more likely, is a variant of the North American A. septentrionalis or A. occidentalis showing morphology parallel to that of the Eurasian entity. Pending these analyses, the species is retained here under A. elongata.

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