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Vascular Plants of California
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Crassula aquatica


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, Bruce G. Baldwin.
Genus: CrassulaView DescriptionDichotomous Key


Habit: Annual, perennial herb, shrub, glabrous (hairy). Stem: erect to decumbent, branched or not. Leaf: opposite, 0.1--7 cm, linear to deltate or obovate, bases fused, +- sheathing; margins generally entire. Inflorescence: terminal panicle or flowers 1 in axils of leaves, either 2 per node, axillary, or 1 per node, terminal but appearing axillary by overtopping of main axis. Flower: erect, sepals 3--5, +- fused at base; petals 3--5, spreading or recurved, free or +- fused at base; stamens = sepals in number; pistils 3--5. Fruit: spreading to erect. Seed: 0.2--0.6 mm, elliptic to elliptic-oblong (spheric, reniform), generally with longitudinal lines, sometimes +- smooth or papillate, red-brown. Chromosomes: x=(7)8.
Species In Genus: +- 250 species: especially Africa, annual +- worldwide. Etymology: (Latin: diminutive of thick) Note: Crassula argentea Thunb., a synonym of Crassula ovata (Mill.) Druce, a waif.
eFlora Treatment Author: Steve Boyd
Unabridged Reference: Moran 1992 Cactus and Succulent Journal 64:223--231
Crassula aquatica (L.) Schönl.
NATIVE
Habit: Annual, generally aquatic or on wet substrates. Stem: decumbent, +- erect if stranded, generally branched at base, rooting at nodes. Leaf: 2--6 mm, oblanceolate to linear, tip acute. Inflorescence: flower 1 per node, terminal; pedicel 0.5--20 mm. Flower: parts in 4s; sepals +- 0.5--1.5 mm, ovate to oblong, rounded to obtuse; petals > sepals, 1--2 mm, ovate to oblong. Fruit: erect, oblong, tip subtruncate; suture straight, abruptly outcurved in distal 1/4. Seed: 6--17, elliptic-oblong, +- dull or shiny but not glistening as if wet, with +- regular, continuous, longitudinal lines at 20×. Chromosomes: 2n=42.
Ecology: Salt marshes, vernal pools, margins of lakes, ponds; Elevation: < 3000 m. Bioregional Distribution: NCo, CaRF, SNF, GV, CW, SW (exc n ChI); Distribution Outside California: North America, Mexico, northern Eurasia. Flowering Time: Mar--Jun(Aug)
Synonyms: Tillaea aquatica L.; Crassula saginoides (Maxim.) M. Bywater & Wickens
Jepson eFlora Author: Steve Boyd
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Botanical illustration including Crassula aquatica

botanical illustration including Crassula aquatica

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Citation for this treatment: Steve Boyd 2012, Crassula aquatica, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=20581, accessed on November 12, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on November 12, 2019.

Crassula aquatica
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© 2016 Neal Kramer
Crassula aquatica
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© 2016 Keir Morse
Crassula aquatica
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© 2003 Keir Morse
Crassula aquatica
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© 2003 Keir Morse
Crassula aquatica
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© 2003 George W. Hartwell
Crassula aquatica
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© 2016 Keir Morse

More photos of Crassula aquatica in CalPhotos



Geographic subdivisions for Crassula aquatica:
NCo, CaRF, SNF, GV, CW, SW (exc n ChI)
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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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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.