Cistanthe monandra (Nutt.) Hershkovitz  
Family: Portulacaceae
common pussypaws,  more...
[Calyptridium monandrum Nutt.]
Cistanthe monandra image
Max Licher  
Plants annual, taprooted. Stems 2 or more from each rosette, spreading to decumbent, 1.5-18 cm. Leaves basal and cauline; basal withering in fruit, in single, prostrate rosette, blade spatulate, 1-5 cm; cauline leaf blades spatulate, 1-2(-4) cm. Inflor-escences racemose or paniculate cymes, scorpioid when immature, loose. Flowers subsessile; sepals ovate, unequal, 1-2 mm, herbaceous, margins scarious; petals (2-)3, pink to reddish, 1-3 mm; stamens 1(-3), anther yellow; style absent; stigmas 2. Capsules ovoid to cylindric, somewhat falcate, 4-8 mm; valves 2. Seeds 4-10, black, orbicular, 0.3-0.7 mm, shiny. 2n = 44. Flowering Mar-Jun. Open sandy areas, burns; 0-2100 m; Ariz., Calif., Nev.; Mexico (Baja California).
Annual herbs to 16 cm tall. STEMS: spreading to ascending. LEAVES: in an ephemeral basal rosette, spatulate, to 7.5 cm long. INFLORESCENCE: a 1-sided raceme, up to 3.5 cm; bracts ovate to elliptic. FLOWERS: sessile; sepals scarious or scarious-margined, ovate, 1-3 mm long; petals 3, white to pinkish, 1-3 mm long; stamen 1; styles absent; stigmas 2, sessile. CAPSULE: with 2 valves, ovoid to cylindric, 2.5- 8 mm long, two and a half or more times as long as sepals. SEEDS: 1-10, black, smooth, shiny NOTES: Sand and gravel washes, rocky slopes, roadsides: Cochise, Gila, Graham, Maricopa, Mohave, Pima, Pinal, Santa Cruz, Yavapai, Yuma cos.; 400 – 1550 m (1400 – 5000 ft); Feb-May; CA, NV, Mex. (Baja C.). REFERENCES: Allison Bair, Marissa Howe, Daniela Roth, Robin Taylor, Tina Ayers, and Robert W. Kiger., 2006, Vascular Plants of Arizona: Portulacaceae. CANOTIA 2(1): 1-22.
Cistanthe monandra image
Max Licher  
Cistanthe monandra image
Desert Botanical Garden  
Cistanthe monandra image
Desert Botanical Garden  
Cistanthe monandra image
Arizona State University Herbarium  
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