Common Name: LOASA FAMILY Habit: Annual to subshrub; hairs needle-like, barbed, occasionally stinging. Leaf: alternate [opposite], generally +- pinnate-lobed; stipules 0. Inflorescence: cyme, raceme. Flower: bisexual, radial; sepals generally 5, generally persistent; petals generally 5, free or fused to each other or filament tube; stamens 5--many, filaments thread-like to flat, occasionally fused at base or in clusters; petal-like staminodes occasionally present; pistil 1, ovary inferior, chamber generally 1, placentas generally 3, parietal, style 1. Fruit: capsule or achene. Seed: 1--many. Genera In Family: 18+ genera, 250 species: especially America (Africa, Pacific). eFlora Treatment Author: Larry Hufford & Barry Prigge, except as noted Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.
Common Name: SANDPAPER-PLANT Habit: Subshrub; hairs barbed. Leaf: linear to +- round, entire to toothed; base tapered to cordate. Inflorescence: raceme, generally terminal; bracts 3 per flower, outer 1 > inner 2. Flower: sepals +- deciduous; petals free or claws adherent, fused below blades; stamens generally 5, free; ovary +- ovoid, placenta 1, stigma 1. Fruit: achene, +- ovoid, generally 5-veined or -ribbed, erect. Seed: 1, 1.5--2.5 mm, +- fusiform, generally smooth. Chromosomes: 2n=46. Etymology: (Greek: petal claw) eFlora Treatment Author: Larry Hufford & Barry Prigge Reference: Davis & Thompson 1967 Madroño 19:1--32
Petalonyx nitidus S. Watson
NATIVE Habit: Plant 15--45 cm. Leaf: 15--40 mm, generally ovate, widely tapered to base, acute to acuminate, serrate to sparsely dentate. Inflorescence: 3--4.5 cm; outer bract 5--13 mm, narrowly ovate; inner bracts 1--5 mm, elliptic to ovate, truncate, crenate; pedicels 1--2 mm. Flower: petals 5--11 mm, cream, upper 1/4 of claws adherent; stamens 7--14 mm, well exserted; style 8--15 mm. Ecology: Sandy washes or rocky canyons, creosote-bush scrub, Joshua-tree woodland, pinyon/juniper woodland; Elevation: 725--2100 m. Bioregional Distribution: W&I, DMtns, w DMoj; Distribution Outside California: to southwestern Utah, northwestern Arizona. Flowering Time: May--Jul Jepson eFlora Author: Larry Hufford & Barry Prigge Reference: Davis & Thompson 1967 Madroño 19:1--32 Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Previous taxon: Petalonyx linearis Next taxon: Petalonyx thurberi
Botanical illustration including Petalonyx nitidus
Citation for this treatment: Larry Hufford & Barry Prigge 2012, Petalonyx nitidus, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=37312, accessed on April 18, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 18, 2024.
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(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).
Data provided by the participants of the
Consortium of California Herbaria.
MAP LEGEND View all CCH records All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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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 (fruiting time in some monocot genera).
