Jepson eFlora: Taxon page
Vascular Plants of California
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Odontostomum hartwegii

Higher Taxonomy
Family: TecophilaeaceaeView Description 
Habit: Perennial herb; corm deep, outer coat fibrous. Stem: 1, erect, +- zigzag. Leaf: mostly basal, linear [to lanceolate], sheathing. Inflorescence: panicle, in smaller plants raceme; bracts scarious. Flower: perianth parts 6 in 2 petal-like whorls, free or fused, often reflexed; stamens 6, fused to perianth parts, alternate 6 staminodes, anthers attached at base; ovary superior, chambers 3, style 1, stigma +- 3-lobed. Fruit: capsule, loculicidal. Seed: 3, brown.
Genera In Family: 9 genera: 23 species: western United States, Africa, Chile. Etymology: (Based on the genus Tecophilaea Bertero ex Colla, named for Tecophila Billotti, botanical artist and daughter of Italian botanist Luigi Aloysius Colla (1766--1848), credited with publishing the genus name)
eFlora Treatment Author: Dale W. McNeal
Scientific Editor: Thomas J. Rosatti.
Genus: OdontostomumView Description 

Etymology: (Greek: tooth mouth, from staminodes +- at top of perianth tube)
Odontostomum hartwegii Torr.
Habit: Corm 2.5--3 cm, +- ovoid. Stem: +- scapose, 12--50 cm, +- curved, generally branched. Leaf: 10--30 cm; upper reduced. Inflorescence: bracts 3--10 mm, linear; pedicel 3--30 mm, with scarious bractlet above middle. Flower: perianth parts fused below, petal-like, white to +- yellow, tube 4--5 mm, strongly veined, lobes +- = tube, spreading, reflexed in age, 3--7-veined; stamens 6, filaments 1--2 mm, staminodes 0.5--1 mm, anthers dehiscing by pores at tip; style 4--5 mm, thread-like. Seed: obovoid. Chromosomes: n=10.
Ecology: Clay, often serpentine soils; Elevation: < 600 m. Bioregional Distribution: KR, NCoRI, CaR, n&c SNF. Flowering Time: Apr--May
Jepson eFlora Author: Dale W. McNeal
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

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Botanical illustration including Odontostomum hartwegii

botanical illustration including Odontostomum hartwegii

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Citation for this treatment: Dale W. McNeal 2012, Odontostomum hartwegii, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on April 22, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora,, accessed on April 22, 2024.

Odontostomum hartwegii
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©2022 Neal Kramer
Odontostomum hartwegii
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©2016 Steve Matson
Odontostomum hartwegii
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©2014 Julie Kierstead Nelson
Odontostomum hartwegii
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©2022 Neal Kramer
Odontostomum hartwegii
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©2014 Julie Kierstead Nelson

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Geographic subdivisions for Odontostomum hartwegii:
KR, NCoRI, CaR, n&c SNF.
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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 occurence).


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

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).