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University of California, Berkeley | |||||
Jepson Herbarium | |||||
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Jepson eFlora: Taxon page
Key to families | Table of families and genera |
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Index to accepted names and synonyms: | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | |
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Family: Brassicaceae (Cruciferae) | View Description | Dichotomous Key |
Genus: Boechera | View Description | Dichotomous Key |
Species: | View Description | Dichotomous Key |
Higher Taxonomy
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Boechera rigidissima (Rollins) Al-Shehbaz NATIVE Habit: Caudex woody. Stem: generally 1 per caudex branch, from center of basal rosette at +- ground surface or on +- elevated woody base; 2--6 dm, proximally with +- sessile, 2--3-rayed (some simple) hairs 0.25--0.4 mm. Leaf: basal 2--6 mm wide, entire; hairs +- sessile, 2--5-rayed, 0.1--0.4 mm; cauline 5--10, distal glabrous, basal lobes 0.5--2 mm. Inflorescence: 5--16-flowered, not 1-sided in fruit; fruit pedicel spreading-ascending, straight, 4--10 mm, glabrous. Flower: sepals glabrous; petals 6--8 mm, 1.5--2 mm wide, purple; pollen spheric. Fruit: spreading-ascending, not appressed, 4--7.6 cm, 2.5--3.5 mm wide, glabrous, edges +- wavy; style 0.2--0.8 mm; ovules 24--54. Seed: in 1 row, 2.5--3.2 mm; wing 0.3--1 mm wide. Ecology: Rocky areas in open conifer forest; Elevation: 1800--2100 m. Bioregional Distribution: KR; Distribution Outside California: Nevada. Flowering Time: Jul--Aug Synonyms: Arabis rigidissima Rollins; Arabis rigidissima var. demota Rollins; Arabis rigidissima var. rigidissima; eFlora Treatment Author: Michael D. Windham & Ihsan A. Al-Shehbaz Reference: Windham & Al-Shehbaz 2006--2007 Harvard Pap Bot 11:61--88, 11:257--274, 12:235--257 Unabridged Reference: Al-Shehbaz 2003 Novon 13:381--391 Jepson Online Interchange Listed on CNPS Rare Plant Inventory Previous taxon: Boechera retrofracta Next taxon: Boechera rollei |
Citation for this treatment: Michael D. Windham & Ihsan A. Al-Shehbaz 2012, Boechera rigidissima, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=85457, accessed on April 21, 2018. Citation for the whole project: Jepson Flora Project (eds.) 2018, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on April 21, 2018. More photos of Boechera rigidissima in CalPhotos
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