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Hesperolinon sharsmithiae
Hesperolinon sharsmithiae R. O'Donnell
Sharsmith's Western Flax, Sharsmith's Dwarf Flax
Linaceae (Flax Family)
Synonym(s):
USDA Symbol: HESH3
USDA Native Status: L48 (N)
"Herbs, 5–50 cm, puberulent on stems just distal to nodes, otherwise glabrous or glabrate; unbranched proximally, branches from distal nodes dichotomous, widely spreading. Leaves alternate; stipular glands present only at proximal nodes; blade linear, 15–20 × 1–1.5 mm, base flat, not clasping, margins without stalked glands. Inflorescences: cymes dichasial, open, internodes long, flowers scattered; bract margins sparsely glandular. Pedicels 0.5–2 mm near tips of branches, 4–5 mm in fruit, ascending, not bent at apex. Flowers: sepals erect, not reflexed at tip, oblanceolate, (1.5–)3 mm, equal, margins sparsely glandular, surfaces glabrous; petals widely spreading, yellow, veins sometimes red-streaked, oblanceolate to obovate, or almost oval, 3–4.5 mm, apex erose; cup yellow, rim lobed between filaments and petal attachments; stamens exserted; filaments 1.5–2.5 mm; anthers yellow, dehisced anthers 1–1.5 mm; ovary chambers 6; styles 3, color not known, 2–3.5 mm, exserted." (Webref: 3).
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Plant Characteristics
Duration: AnnualHabit: Herb
Leaf Arrangement: Alternate
Leaf Shape: Linear
Leaf Margin: Entire
Inflorescence: Axillary , Cyme
Fruit Type: Capsule
Size Notes: To about 20 inches in height.
Leaf: "Leaves alternate; stipular glands present only at proximal nodes; blade linear, 15-20 x 1-1.5 mm, base flat, not clasping, margins without stalked glands." (Webref: 3).
Flower: "Inflorescences: cymes dichasial, open, internodes long, flowers scattered; bract margins sparsely glandular. Pedicels 0.5-2 mm near tips of branches, 4-5 mm in fruit, ascending, not bent at apex. Flowers: sepals erect, not reflexed at tip, oblanceolate, (1.5-)3 mm, equal, margins sparsely glandular, surfaces glabrous; petals widely spreading, yellow, veins sometimes red-streaked, oblanceolate to obovate, or almost oval, 3-4.5 mm, apex erose; cup yellow, rim lobed between filaments and petal attachments; stamens exserted; filaments 1.5-2.5 mm; anthers yellow, dehisced anthers 1-1.5 mm; ovary chambers 6; styles 3, color not known, 2-3.5 mm, exserted." (Webref: 3).
Fruit: "Fruit globose capsule about 2 mm long and as wide." (Reslit: 3182).
Bloom Information
Bloom Color: YellowBloom Time: May , Jun , Jul
Web Reference
Webref 30 - Calflora (2018) CalfloraWebref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Research Literature
Reslit 3182 - A NEW SPECIES OF HESPEROLINON (LINACEAE) FROM HUNTING CREEK IN NAPA COUNTY, CALIFORNIA (2006) Richard O'DonnellThis information was provided by the Florida WIldflower Foundation.
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Additional resources
USDA: Find Hesperolinon sharsmithiae in USDA PlantsFNA: Find Hesperolinon sharsmithiae in the Flora of North America (if available)
Google: Search Google for Hesperolinon sharsmithiae
Metadata
Record Modified: 2023-04-12Research By: Joseph A. Marcus