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Hesperidanthus suffrutescens
Family:
Brassicaceae
Shrubby Waxfruit
Images
not available
FNA
Resources
Ihsan A. Al-Shehbaz in Flora of North America (vol. 7)
Perennials;
(suffrutescent, woody proximally).
Stems
several from caudex, erect to ascending, (few-branched distally), 1-3.5 dm.
Cauline leaves
sessile or petiolate, (to 11 mm); blade oblanceolate to lanceolate or elliptic, (0.7-)1-2.5 cm × 3-10 mm, base cuneate to attenuate, margins entire or, rarely, obscurely denticulate, apex acute or obtuse.
Racemes
5+-flowered, (sometimes 1 or 2 flowers bracteate).
Fruiting pedicels
ascending, straight or curved upward, 3-10(-12) mm.
Flowers:
sepals yellowish green, 4-6 × 1-1.5 mm; petals yellow, 7-11 × 1.5-2.5 mm, claw undifferentiated from blade; filaments 2-3 mm; anthers oblong, 0.7-0.9 mm; gynophore 0.4-0.8 mm.
Fruits
straight, latiseptate, 1-2 cm × 1.2-2.5 mm; ovules 8-16 per ovary; style cylindrical, (0.5-)1-2 mm; stigma flat, entire.
Seeds
1.5-1.9 × 0.9-1.3 mm.
Flowering May-Jul. Mixed desert shrubs, shale barrens, decomposed chip-rock, limy shale; of conservation concern; 1500-2100 m; Utah.
Hesperidanthus suffrutescens
is restricted to the Green River Formation in Duchesne and Uintah counties.
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