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Dudleya saxosa subsp. saxosa

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
Species: Dudleya saxosaView Description 

Habit: Rosettes 1--few, 6--23 cm wide. Leaf: evergreen but smaller in summer, few green in droughts, lance-oblong, glaucous in youth, tip acute. Inflorescence: peduncle 5--51 cm, 1--9 mm wide, often +- red; 1° branches 2--3, branched 0--1 ×; pedicels 5--20 mm. Flower: sepals 4--8 mm, deltate, acute; petals 2.5--4 mm wide, lance-oblong, acute.
Note: 1 other subsp., western and central Arizona.
Unabridged Note: Dudleya saxosa subsp. collomiae (Rose) Moran (petals generally bright yellow; 2n=136) western and central Arizona.

Dudleya saxosa (M.E. Jones) Britton & Rose subsp. saxosa
Habit: Rosettes 1--4, 6--20 cm wide. Stem: 1--1.5 cm wide. Leaf: 3--9 cm, 3--15 mm wide, 1.5--3 mm thick, base 5--15 mm wide. Inflorescence: peduncle 5--20 cm, 2--4 mm wide; lower internodes generally > 5 mm; 1° branches 3, terminal branches not wavy, 1--4 cm, 2--9-flowered. Flower: petals 9--12 mm, fused 1--4 mm, bright yellow, generally red-tinged. Chromosomes: 2n=136,170.
Ecology: N-facing, granitic or limestone slopes; Elevation: 1100--2200 m. Bioregional Distribution: n DMtns (w Panamint Range). Flowering Time: May--Jun
eFlora Treatment Author: Stephen Ward McCabe
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory

Previous taxon: Dudleya saxosa subsp. aloides
Next taxon: Dudleya stolonifera

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Citation for this treatment: Stephen Ward McCabe 2016. Dudleya saxosa subsp. saxosa, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on May 06, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on May 06, 2016.

Geographic subdivisions for Dudleya saxosa subsp. saxosa:
n DMtns (w Panamint Range).
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).

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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.