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Daucus pusillus

Higher Taxonomy
Family: Apiaceae (Umbelliferae)View DescriptionDichotomous Key

Habit: Annual to perennial herb [shrub, tree], generally from taproot. Stem: generally +- scapose, generally ribbed, hollow. Leaf: basal and generally cauline, generally alternate; stipules generally 0; petiole base generally sheathing stem; blade generally much dissected, occasionally compound. Inflorescence: umbel or head, simple or compound, generally peduncled; bracts present in involucres or 0; bractlets generally present in "involucels". Flower: many, small, generally bisexual (or some staminate), generally radial (or outer bilateral); calyx 0 or lobes 5, small; petals 5, free, generally ovate or spoon-shaped, generally incurved at tips, generally +- ephemeral; stamens 5; pistil 1, ovary inferior, 2-chambered, generally with a +- conic, persistent projection or platform at tip subtending 2 free styles. Fruit: 2 dry, 1-seeded halves (= mericarps), separating from each other but generally +- persistent to central axis; ribs on halves 5, 2 marginal, 3 to back; oil tubes 1--several per interval between ribs.
Genera In Family: 300 genera, 3000 species: +- worldwide, especially temperate; many cultivated for food or spice (e.g., Carum, caraway; Daucus; Petroselinum); Bupleurum lancifolium Hornem. is historical garden weed; some toxic (e.g., Conium). Note: Mature fruit generally critical in identification, shape given in outline. Hydrocotyle moved to Araliaceae. Petroselinum crispum (Mill.) A.W. Hill is a waif.
eFlora Treatment Author: Lincoln Constance & Margriet Wetherwax, except as noted
Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.
Genus: DaucusView DescriptionDichotomous Key

Habit: Annual, biennial, taprooted, hairy. Stem: decumbent or erect, generally +- branched. Leaf: blade oblong, pinnately dissected, segments linear to lanceolate. Inflorescence: umbels compound; bracts, bractlets generally present; bracts conspicuous, generally pinnately lobed; bractlets entire to toothed; rays generally many, spreading, in fruit incurved to form nest-like umbel. Flower: outer occasionally +- bilateral; calyx lobes 0 or evident; petals wide, white, margins occasionally +- red, tips narrowed, unequally 2-lobed. Fruit: oblong to ovate, compressed front-to-back; ribs 10, 1° thread-like, bristly, 2° winged, prickly; oil tubes 1 beneath each 2° rib; fruit axis entire or notched at tip.
Species In Genus: +- 20 species: America, Eurasia, northern Africa, Australia. Etymology: (Greek: carrot)

Daucus pusillus Michx.
Habit: Plant 0.3--9 dm, generally simple or few-branched. Leaf: petiole 4--15 cm; blade 3--10.5 cm, segments 1--5 mm, linear, acute, entire, +- bristly. Inflorescence: peduncles 1--4.5 cm, bristles reflexed to spreading; rays 0.4--4 cm; pedicels 2--9 mm. Fruit: 3--5 mm. Chromosomes: n=22.
Ecology: Rocky or sandy places; Elevation: < 1650 m. Bioregional Distribution: CA-FP (esp coastal), DMtns; Distribution Outside California: to British Columbia, southeastern United States, South America. Flowering Time: Apr--Jun
eFlora Treatment Author: Lincoln Constance & Margriet Wetherwax
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botanical illustration including Daucus pusillus


Citation for this treatment: Lincoln Constance & Margriet Wetherwax 2016. Daucus pusillus, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on April 30, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on April 30, 2016.

Daucus pusillus
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© 2013 Keir Morse
Daucus pusillus
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© 2013 Keir Morse
Daucus pusillus
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© 2007 Neal Kramer
Daucus pusillus
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© 2013 Keir Morse
Daucus pusillus
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© 2006 Keir Morse
Daucus pusillus
click for enlargement
© 2013 Keir Morse

More photos of Daucus pusillus in CalPhotos

Geographic subdivisions for Daucus pusillus:
CA-FP (esp coastal), DMtns;
Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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.