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Marie Selby Botanical Gardens
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Damasonium
Family:
Alismataceae
FNA
Resources
Robert R. Haynes; C. Barre Hellquist in Flora of North America (vol. 22)
Plants perennial, floating-leaved or emersed, glabrous; rhizomes usually absent; stolons absent; corms present; tubers absent. Roots not septate. Leaves: petiole triangular; blade with translucent markings absent, narrow-lanceolate to ovate, base rounded to attenuate, basal lobes absent, margins entire, apex acute. Inflorescences racemes [panicles], of 1--9 whorls, erect, emersed; bracts coarse, apex acute, surfaces smooth. Flowers bisexual, pedicellate; bracts subtending pedicels, lanceolate to ovate-lanceolate, much shorter than pedicels, apex acuminate; pedicels ascending to spreading; receptacle flat; sepals erect, without sculpturing, herbaceous; petals white or pink, erose; stamens 6; filaments dilated, glabrous; pistils 6--15, in single ring, radiating in starlike pattern, weakly coherent proximally; ovules 1--2; styles terminal. Fruits longitudinally ribbed, laterally compressed, not abaxially keeled, abaxial wings absent, lateral wings absent, glands absent. x = 7.
Species within inventory project:
Arizona Flora
Damasonium alisma
Map not
Available
Damasonium bourgaei
Images
not available
Map not
Available
Damasonium californicum
Map not
Available
Damasonium minus
Map not
Available
Damasonium polyspermum
Map not
Available
This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].
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