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Dudleya abramsii subsp. calcicola

Higher Taxonomy
Family: CrassulaceaeView DescriptionDichotomous Key

Habit: Annual to shrub [(+- tree-like or climbing)], fleshy. Leaf: generally simple, alternate or opposite, in dense to open, basal (or terminal) rosettes or basal and cauline, not in rosettes, reduced distally or not, margin often +- red. Inflorescence: generally cyme, generally bracted. Flower: generally bisexual; sepals generally 3--5, generally +- free; petals generally 3--5, +- free or fused; stamens >> to = sepals, epipetalous or not; pistils generally 3--5, simple, fused at base or not, ovary 1-chambered, placenta 1, parietal, ovules 1--many, style 1. Fruit: follicles, generally 3--5. Seed: 1--many, small.
Genera In Family: +- 33 genera, +- 1400 species: +- worldwide, especially dry temperate; many cultivated for ornamental. Note: Water-stressed plants often +- brown or +- red. Consistent terminology regarding leaves, bracts difficult; in taxa with rosettes (e.g., Aeonium, Dudleya, some Sedum), structures in rosettes are leaves, those on peduncles are bracts, and those subtending flowers are flower bracts; in taxa where inflorescence is terminal, rosette leaves may "become" bracts as stem rapidly elongates to form inflorescence. Seed numbers given per follicle.
eFlora Treatment Author: Steve Boyd, except as noted
Scientific Editor: Thomas J. Rosatti.
Genus: DudleyaView DescriptionDichotomous Key

Habit: Perennial herb, fleshy, glabrous, bisexual. Stem: generally caudex- or corm-like, branched or not, +- covered with dried leaves. Leaf: in rosettes, evergreen or +- deciduous in summer (withering, falling or not), waxy or not, base wounding purple-red (yellow) or generally not. Inflorescence: cyme; flower bracts +- subtending pedicels, < bracts; bracts alternate. Flower: sepals 5, fused below; petals 5, fused at base, erect to spreading above; stamens 10, epipetalous; carpels 5, +- fused below. Fruit: follicles 5, erect to spreading, many-seeded. Seed: < 1 mm, narrowly ovoid, brown, striate.
Species In Genus: +- 46 species: southwestern North America; some used as groundcover or cultivated for ornamental. Etymology: (W.R. Dudley, 1st head of Botany Department, Stanford University, 1849--1911) Note: Fruit just before opening generally most reliable for orientation; insect damage may cause branching in taxa characterized as non-branching.
Unabridged Note: Whether or not leaves of Dudleya cymosa subsp. costatifolia, Dudleya saxosa subsp. saxosa, Dudleya variegata wound purple-red, red, yellow, or some other color at base when removed is evidently unknown.
eFlora Treatment Author: Stephen Ward McCabe
Reference: Thiede 2003 in Eggli (ed.) Illus Handbook Succulent Pls 6 (Crassulaceae):85--103. Springer
Species: Dudleya abramsiiView Description 

Habit: Cespitose or not; rosettes 1--many, 0.5--15 cm wide. Leaf: generally dry but +- not deciduous in summer, 2--30 mm, 3--20 mm wide, lance-oblong or lanceolate (elliptic to oblanceolate), generally glaucous, adaxially generally +- flat. Inflorescence: peduncle 2--25 cm, 1--6 mm wide; lower bracts 4--40 mm; pedicels 0.5--7(11) mm. Flower: sepals 2--5 mm, deltate; petals 8--13 mm, 1.5--3.5 mm wide, fused 1--4.5 mm, elliptic, acute, pale- or cream-yellow, margin often jagged, keel generally with fine, purple to red lines. Chromosomes: 2n=34.

Dudleya abramsii subsp. calcicola (Bartel & Shevock) K.M. Nakai
Habit: Rosettes 1--50, 1--9 cm wide. Stem: 0.3--2 cm wide. Leaf: 1--6(10) cm, 2--9 mm wide, lance-oblong to lanceolate to subcylindric, tip acute to subacuminate. Inflorescence: peduncle 3--18 cm, 1.5--4.5 mm wide; 1° branches 2--4, generally spreading, branched (0)3 ×, 2--8-flowered; pedicels 2--14 mm. Flower: sepals 2.5--6 mm, triangular-ovate to lanceolate; petals 9--15 mm, 3.5--5 mm wide, fused 1--3 mm, lanceolate, narrowly acute, keel darker yellow (to red-tinged).
Ecology: Open, rocky, granite or generally limestone outcrops; Elevation: 500--2600 m. Bioregional Distribution: s SNH. Flowering Time: May--Jun(Jul)
Synonyms: Dudleya calcicola Bartel & Shevock
Unabridged Note: Intermediate in some ways between Dudleya abramsii subsp. abramsii and Dudleya cymosa subsp. costatifolia or Dudleya cymosa subsp. cymosa. Plants in same geographic area but not on limestone, with few and larger rosettes that were part of Dudleya abramsii subsp. calcicola in TMJ1 here placed in Dudleya abramsii subsp. abramsii.
eFlora Treatment Author: Stephen Ward McCabe
Reference: Thiede 2003 in Eggli (ed.) Illus Handbook Succulent Pls 6 (Crassulaceae):85--103. Springer
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Listed on CNPS Rare Plant Inventory

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botanical illustration including Dudleya abramsii subsp. calcicola


Citation for this treatment: Stephen Ward McCabe 2012, Dudleya abramsii subsp. calcicola, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on December 10, 2017.

Citation for the whole project: Jepson Flora Project (eds.) 2017, Jepson eFlora,, accessed on December 10, 2017.

Dudleya abramsii subsp. calcicola
click for enlargement
© 2007 Neal Kramer
Dudleya abramsii subsp. calcicola
click for enlargement
© 2007 Neal Kramer

More photos of Dudleya abramsii subsp. calcicola in CalPhotos

Geographic subdivisions for Dudleya abramsii subsp. calcicola:
s SNH.
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).

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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.