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Vascular Plants of California
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Androsace elongata subsp. acuta


Higher Taxonomy
Family: PrimulaceaeView DescriptionDichotomous Key
Habit: Annual, perennial herb, or subshrub, glabrous to glandular-hairy. Leaf: simple, +- basal, petioled or not; stipules 0. Inflorescence: scapose umbel, subtended by involucre. Flower: bisexual, radial; parts in 4s or 5s (6s); calyx deeply lobed, often persistent; corolla lobes erect or spreading to reflexed; stamens epipetalous, opposite corolla lobes; ovary superior, 1-chambered, placenta free-central, style 1, stigma head- or dot-like. Fruit: capsule, 2--7-valved or circumscissile. Seed: small, few to many.
Genera In Family: +- 8 genera, 600 species: northern hemisphere; several ornamental (Primula). Note: Based on molecular evidence, non-rosette terrestrial members of Primulaceae as treated in TJM (1993) moved to Myrsinaceae, and Samolus to Theophrastaceae; based on the same evidence, Primulaceae has been treated alternatively to include all of Myrsinaceae and Theophrastaceae. Taxa of Dodecatheon in TJM2 treated here in Primula.
Unabridged Note: Recent molecular work has led to new understanding of relationships in Ericales. As treated here, non-rosette, terrestrial members of Primulaceae s.l. have been removed from that family and inserted in Myrsinaceae. Myrsinaceae, then, is characterized by synapomorphies of dark dots or streaks on stems, leaves, or flowers, short corolla tubes, seeds immersed in the placenta, and -- for woody members -- wood lacking rays or with only multiseriate rays. Primulaceae, Myrsinaceae, Theophrastaceae, and Maesaceae (a recent segregate of tropical trees), now constitute a closely related, monophyletic clade. A more recently proposed, alternative taxonomy treats all members of that large clade within an expanded Primulaceae.
eFlora Treatment Author: Anita F. Cholewa, except as noted
Scientific Editor: Bruce G. Baldwin, David J. Keil, Thomas J. Rosatti.
Genus: AndrosaceView DescriptionDichotomous Key

Habit: Annual, perennial herb, generally < 12 cm. Inflorescence: umbel subtended by involucre. Flower: parts in 5s; calyx tube scarious, lobes acute; corolla salverform, tube narrowed at top, lobe tips obcordate or notched; filaments +- 0 or short, anthers free, oblong, included; ovary superior, spheric, style short. Fruit: 5-valved, spheric.
Etymology: (Greek: uncertain sea-pl)
eFlora Treatment Author: Anita F. Cholewa
Reference: Schneeweiss et al. 2004 Syst Biol 53:856--876
Unabridged Reference: Robbins 1944 Amer Midl Naturalist 32:137--163; Schneeweiss et al. 2004 Syst Biol 53(6):856--876
Androsace elongata L. subsp. acuta (Greene) G.T. Robbins
Habit: Annual 2--8 cm, hairy. Leaf: 5--20 mm, lance-linear, tapered to petiole, acute to acuminate, generally entire or finely dentate, ciliate. Inflorescence: peduncles 1--several; involucre bracts 2.5--5 mm, < 1 mm wide, lanceolate to ovate, acute to acuminate; pedicel 0.6--6.4 cm. Flower: calyx 3.5--5 mm, hairy, lobes generally = tube, awl-like, tips acute, stiff, +- red; corolla < calyx, white. Chromosomes: 2n=40.
Ecology: Dry grassy slopes; Elevation: < 1200 m. Bioregional Distribution: NCoRI, CaR, s SNF, GV, SnFrB, SCoRI, SCo, WTR, SnBr, PR; Distribution Outside California: Oregon, Nevada, Baja California. Flowering Time: Feb--Apr
Synonyms: Androsace acuta Greene; Androsace occidentalis Pursh var. acuta (Greene) Jeps.
Jepson eFlora Author: Anita F. Cholewa
Reference: Schneeweiss et al. 2004 Syst Biol 53:856--876
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)
Listed on CNPS Rare Plant Inventory

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Botanical illustration including Androsace elongata subsp. acutabotanical illustration including Androsace elongata subsp. acuta

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Citation for this treatment: Anita F. Cholewa 2012, Androsace elongata subsp. acuta, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on July 17, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora,, accessed on July 17, 2024.

Androsace elongata subsp. acuta
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©1998 John Game
Androsace elongata subsp. acuta
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©2015 Keir Morse
Androsace elongata subsp. acuta
click for image enlargement
©2015 Keir Morse
Androsace elongata subsp. acuta
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©2011 Chris Winchell
Androsace elongata subsp. acuta
click for image enlargement
©2015 Keir Morse

More photos of Androsace elongata subsp. acuta
in CalPhotos

Geographic subdivisions for Androsace elongata subsp. acuta:
NCoRI, CaR, s SNF, GV, SnFrB, SCoRI, SCo, WTR, SnBr, PR
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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 occurrence).


Data provided by the participants of the  Consortium of California Herbaria.

View all CCH records
All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.

CCH collections by month Flowering-Fruiting Monthly Counts

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time (fruiting time in some monocot genera).