Jepson eFlora: Taxon page
Vascular Plants of California
Key to families | Table of families and genera
Previous taxon Index to accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M |
| N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Next taxon

Dudleya blochmaniae subsp. blochmaniae


Higher Taxonomy
Family: CrassulaceaeView DescriptionDichotomous Key
Habit: Annual to shrub [+- tree-like or climbing], fleshy. Leaf: generally simple, alternate or opposite (whorled), in dense to open, basal (or terminal) rosettes, or basal and cauline (not in rosettes), reduced on distal stem or not, often +- red. Inflorescence: generally a cyme, panicle-like, 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(8), simple, fused at base or not, ovary 1-chambered, placenta 1, parietal, ovules 1--many, style 1 per pistil. Fruit: follicles, generally 3--5. Seed: 1--many, small.
Genera In Family: +- 33 genera, +- 1400 species: +- worldwide, especially dry temperate; many cultivated for ornament. Note: Water-stressed plants often +- red. Consistent terminology regarding leaves, bracts difficult; in Aeonium and Dudleya, structures in rosettes are leaves, those on peduncles are bracts, and those subtending flowers are flower bracts; thus in taxa where the inflorescence is terminal, rosette leaves may "become" bracts as stem rapidly elongates to form an inflorescence. In Sedum structures below the inflorescence are interpreted as stems and leaves, not peduncles and bracts. Seed numbers given per follicle. SCIED: Scientific Editor: Bruce G. Baldwin, Thomas J. Rosatti.
eFlora Treatment Author: Steve Boyd, except as noted
Scientific Editor: Bruce G. Baldwin, 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.
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. costifolia, 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 blochmaniaeView Description 

Habit: Rosettes 1(5), 0.5--7 cm wide. Leaf: deciduous in summer, 1--6 cm, +- oblanceolate to club-shaped, base wounding purple-red, 1--4 mm wide, tip acute to rounded; petiole +- narrow. Inflorescence: lower bracts > 2 × longer than wide; 1° branches 2--3, branched 0--1 ×, 1--6 cm, 3--10-flowered; pedicels < 1 mm. Flower: sepals 1.5--4 mm, deltate-ovate; petals spreading from base, 5--10 mm, elliptic, acute, white, keel often red-lined. Fruit: spreading.

Dudleya blochmaniae (Eastw.) Moran subsp. blochmaniae
Habit: Rosettes 1--7 cm wide. Stem: 7--25 mm, 4--15 mm wide, +- spheric to fusiform. Leaf: generally < 12, 1--6 cm, 3--8 mm wide, 2--4 mm thick, not to +- glaucous. Inflorescence: peduncle (0.9)3--12(22) cm, 0.5--2 mm wide. Chromosomes: 2n=34,[68,102].
Ecology: Open, rocky slopes, often serpentine or clay-dominated; Elevation: < 450 m. Bioregional Distribution: s CCo, SCo, n ChI (Santa Cruz Island); Distribution Outside California: northern Baja California. Flowering Time: Apr--Jun Note: Hybrids with Dudleya edulis suspected.
Jepson eFlora Author: Stephen Ward McCabe
Reference: Thiede 2003 in Eggli (ed.) Illus Handbook Succulent Pls 6 (Crassulaceae):85--103. Springer
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)
Listed on CNPS Rare Plant Inventory

Previous taxon: Dudleya blochmaniae
Next taxon: Dudleya blochmaniae subsp. insularis

Please use this Google Form for Contact/Feedback

Citation for this treatment: Stephen Ward McCabe 2012, Dudleya blochmaniae subsp. blochmaniae, 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.

Dudleya blochmaniae subsp. blochmaniae
click for image enlargement
©2016 Keir Morse
Dudleya blochmaniae subsp. blochmaniae
click for image enlargement
©2016 Keir Morse
Dudleya blochmaniae subsp. blochmaniae
click for image enlargement
©2011 Aaron E. Sims
Dudleya blochmaniae subsp. blochmaniae
click for image enlargement
©2016 Keir Morse
Dudleya blochmaniae subsp. blochmaniae
click for image enlargement
©2016 Keir Morse

More photos of Dudleya blochmaniae subsp. blochmaniae
in CalPhotos

Geographic subdivisions for Dudleya blochmaniae subsp. blochmaniae:
s CCo, SCo, n ChI (Santa Cruz Island)
1. You can change the display of the base map layer control box in the upper right-hand corner.
2. County and Jepson Region polygons can be turned off and on using the check boxes.
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).