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Dudleya virens subsp. hassei

Higher Taxonomy
Family: CrassulaceaeView DescriptionDichotomous Key

Common Name: STONECROP FAMILY
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

Common Name: DUDLEYA, LIVEFOREVER
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 virensView Description 

Habit: Rosettes many, 4--25 cm wide. Stem: 1--8 cm wide. Leaf: evergreen, 3--25 cm, 15--30 mm wide, oblong, 4--6 mm thick, in ×-section +- elliptic or in upper 1/2 round, glaucous or not, +- fragrant or not. Inflorescence: peduncle 6--70 cm, 1.5--15 mm wide; 1° branches 2--many, branched 0--3 ×; terminal branches 1--10 cm, 3--20-flowered; pedicels 1--5 mm. Flower: sepals 2--4 mm, acute; petals 7--10 mm, 2--3 mm wide, fused 1--2 mm, elliptic, acute, white to pale yellow, some with red, keels rose or orange-brown.
Note: 1 other subsp., Guadalupe Island, Mexico.
Unabridged Note: 1 other subsp., Dudleya virens subsp. extima Moran, Guadalupe Island, Mexico.

Dudleya virens subsp. hassei (Rose) Moran
NATIVE
Habit: Rosettes 4--8 cm wide. Stem: 1--3(4) cm wide. Leaf: 15--30, outer ascending to erect, 3--10(15) cm, 5--10(15) mm wide, 2--4 mm thick, +- round in ×-section in upper 1/2, linear-oblong to -lanceolate, base 8--15 mm wide, generally glaucous. Inflorescence: peduncle 10--30 cm, 1.5--5 mm wide, ascending or erect, not easily broken when dry; 1° branches 2--4, branched 0--1 ×; terminal branches 2--10 cm, 3--15(20)-flowered; pedicels generally 1--2(5) mm. Flower: petals (7)8--10 mm, fused 1.5--2 mm, spreading from middle, white, keels marked rosy or not. Chromosomes: 2n=68.
Ecology: Rocks, cliffs; Elevation: < 200 m. Bioregional Distribution: s ChI (Santa Catalina Island). Flowering Time: Apr--Jun Note: Hybrids with Dudleya virens subsp. insularis suspected.
Synonyms: Dudleya hassei (Rose) Moran
Unabridged Note: Morphologically similar plants from San Clemente Island need study.
eFlora Treatment Author: Stephen Ward McCabe
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory

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Citation for this treatment: Stephen Ward McCabe 2016. Dudleya virens subsp. hassei, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=80496, accessed on May 28, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 28, 2016.


Dudleya virens subsp. hassei
click for enlargement
© 2006 Steve Matson
Dudleya virens subsp. hassei
click for enlargement
© 2006 Steve Matson
Dudleya virens subsp. hassei
click for enlargement
© 2006 Steve Matson
Dudleya virens subsp. hassei
click for enlargement
© 2010 Gary A. Monroe
Dudleya virens subsp. hassei
click for enlargement
© 2006 Steve Matson
Dudleya virens subsp. hassei
click for enlargement
© 2006 Steve Matson

More photos of Dudleya virens subsp. hassei in CalPhotos


Geographic subdivisions for Dudleya virens subsp. hassei:
s ChI (Santa Catalina Island).
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.
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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).

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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.