Hypericum hypericoides
(St. Andrew's Cross)
Hypericum hypericoides, Scrappin’ Valley, Newton Co. 3760
Hypericum hypericoides, Scrappin’ Valley, Newton Co. 3766
Hypericum hypericoides, Bastrop State Park, Bastrop Co. 1568
Hypericum hypericoides, Bastrop State Park, Bastrop Co. 1566
Hypericum hypericoides, Scrappin’ Valley, Newton Co. 3769
Hypericum hypericoides, Bastrop State Park, Bastrop Co. 1589
| Scientific Name | Hypericum hypericoides (Ascyrum hypericoides) | USDA PLANTS Symbol | HYHY |
| Common Name | St. Andrew's Cross | ITIS Taxonomic Serial No. | 503138 |
| Family | Hypericaceae (St. John's Wort) | SEINet Reference |
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| Description | Habitat: Dry gravelly or sandy soils in sunny, open areas and fields. Plant: Erect to sprawling, shrubby perennial 6 inches 3 feet tall and wide with leafy, branched red-brown stems with bark exfoliating in shreds. Leaves: Opposite, linear to oblanceolate, 1/4 to 1-1/4 inches long and up to 1/3-inch wide and sessile. Inflorescence: Solitary, yellow, 4-petal flowers 3/8 to 3/4-inch across presenting a cross or X-shape; petals obovate to narrowly oblong-elliptic; numerous stamens and 2 very short styles; outer 2 sepals are ovate to elliptic, about 1/2-inch long and wide with pointed or rounded tips. Fruit: Narrow egg-shaped or cylindrical capsule, 1/3-inch or less long partially enclosed by the drying calyx. Bloom Period: May to November. References: Ascyrum hypericoides in "Manual of the Vascular Plants of Texas" by Correll and Johnston; "Wildflowers of Texas" by Michael Eason, Texas A&M, Flora of North America and SEINet. |
BONAP Distribution Map Map Color Key |
Texas Status: Native |
Banner photo of Castilleja indivisa and Lupinus ssp. taken along FM 1323 north of Johnson City, Blanco County
© Tom Lebsack 2024