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|Family: Convolvulaceae||View Description||Dichotomous Key|
|Genus: Calystegia||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Calystegia atriplicifolia Hallier f. subsp. buttensis Brummitt
Habit: Perennial herb from rhizome, generally glabrous. Stem: decumbent to +- erect, 10--50 cm. Leaf: blade generally 2--4 cm, generally triangular-hastate to reniform; lobes not clearly defined, directed +- laterally, truncate to wedge-shaped or widely rounded, occasionally with shallow sinus. Inflorescence: peduncle < 5 cm, generally < subtending leaf; bracts not fully hiding calyx, 8--12 mm, 3--9 mm wide, +- cordate-elliptic, entire, +- obtuse. Flower: sepals 10--15 mm; corolla 30--45 mm, white (pink-tinged).
Ecology: Dry, rocky places in open forest, chaparral; Elevation: 600--1200 m. Bioregional Distribution: KR, CaRH, SnFrB. Flowering Time: May--Jul Note: Scattered, uncommon, variable; intergrades with Calystegia occidentalis subsp. occidentalis. Plants intermediate to Calystegia atriplicifolia subsp. atriplicifolia of Oregon, Washington, in KR; plants +- intermediate to Calystegia subacaulis in SnFrB.
Synonyms: Convolvulus nyctagineus Greene, in part
Unabridged Note: Calystegia atriplicifolia subsp. atriplicifolia of Oregon & Washington differs by leaf blades generally 4--6 cm, more rounded, less hastate; bracts generally 15--22 mm; corolla generally 50--70 mm. Plants in Del Norte Co. may be new sp.
eFlora Treatment Author: R.K. Brummitt
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory
Previous taxon: Calystegia
Next taxon: Calystegia collina
Citation for this treatment: R.K. Brummitt 2017. Calystegia atriplicifolia subsp. buttensis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=49538, accessed on March 29, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on March 29, 2017.