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Thysanocarpus curvipes Hook. (redirected from: Thysanocarpus foliosus)
Family: Brassicaceae
sand fringepod,  more...
[Thysanocarpus amplectens Greene,  more]
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Liz Makings  
Stems 1-6(-8) dm. Basal leaves: blade oblanceolate to obovate, 1-6(-13) cm, margins subentire to sinuate-dentate, surfaces often hirsute, sometimes glabrous, (trichomes white, 0.3-0.6 mm). Cauline leaves: blade lanceolate, widest at base, base auriculate-clasping, auricles extending around stem (at least some leaves). Racemes: internodes 3-6(-9) mm in fruit. Fruiting pedicels smoothly recurved, (proximal) 3-7(-12) mm. Fruits flat or plano-convex, obovate to nearly orbicular, [3-6(-9) mm wide]; valves pubescent or glabrous, trichomes clavate and 0.2-0.4 mm, or pointed and ± 0.2 mm; wing entire, perforate, or incised, rays absent or distinct, (0-)0.2-0.5 mm wide. Flowering Feb-Jun. Rocky slopes, washes, oak woodlands, streamsides, meadows, sometimes serpentine soils; 150-2000 m; B.C.; Ariz., Calif., Colo., Idaho, Nev., N.Mex., Oreg., Utah, Wash.; Mexico (Baja California, Sonora). Thysanocarpus curvipes is the most widespread and variable species in the genus. Variants have been named as varieties or species, but they grade into each other imperceptibly. Notable among these are var. elegans, a form with incised or perforate fruit wings, and var. eradiatus, a form with rayless, entire wings. Some of these may be the result of hybridization with other taxa. For instance, var. elegans has large fruits and occurs in the vicinity of T. radians, the largest-fruited member of the genus. Furthermore, fruits of var. elegans often have pointed hairs like those usually found on fruits of T. radians; such hairs are not found on fruits of any other members of the genus. Thysanocarpus curvipes includes both diploid and tetraploid populations (M. D. Windham, unpubl.), but these do not appear to segregate into recognizable groups. Although the variation in T. curvipes is considerable, its great complexity prevents recognition of infraspecific taxa at this time.

Jepson 1993
Duration: Annual Nativity: Native Lifeform: Forb/Herb General: Annual with simple or branched stem, 10-80 cm tall, hairs generally below. Leaves: Oblong to elliptic or linear, 12-60 cm long, dentate to shallowly lobed, middle and upper cauline sessile, entire to dentate, base lobed, clasping stem. Flowers: Racemes without bracts, sepals about 1 mm, often purplish with a white margin, petals white or purple tinged, just exceeding the sepals. Fruits: Silicle elliptic to round, 5-8 mm, hairy or not, wing entire, wavy-margined or crenate, often perforated, pedicel recurved, 4-7 mm. Ecology: Found on slopes, in washes, and desert scrub below 7,000 ft (2134 m); flowers March-May. Notes: This species is named fringepod because of the distinctive margins of the silicle, that makes it hard to not know this plant as it is fruiting in spring. Ethnobotany: Taken for stomachaches and the seeds were used in pinole mixtures. Etymology: Thysanocarpus comes from Greek thusanos, fringe and karpos, fruit, which is a reference to the fringed silique, while curvipes means with curved feet or stalks. Synonyms: Thysanocarpus amplectens, Thysanocarpus curvipes var. elegans, Thysanocarpus curvipes var. eradiatus, Thysanocarpus curvipes var. longistylus, Thysanocarpus elegans Editor: SBuckley, 2010
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Max Licher  
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Leslie Landrum  
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Max Licher  
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Max Licher  
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Gregory Gust  
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Gregory Gust  
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Max Licher  
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Gregory Gust  
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Sue Carnahan  
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Ries Lindley  
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Max Licher  
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Dustin Wolkis  
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Eugene, (Gene) Sturla  
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Dustin Wolkis