Yerba Buena - Satureja douglasii
State Rank Reason (see State Rank above)
Rare in Montana, where it is known from several sites near the Idaho border. It is primarily a coastal species, disjunct in western Montana. Population levels appear healthy and may be increasing in some areas.
Yerba Buena is an aromatic perennial herb borne from a woody rootstock with short ascending branches and creeping above-ground stems which often root. The stems and branches are square in cross-section. The leaves are opposite, have short petioles (stalks), are 1-3.5 cm long and oval to almost round in shape, and have bluntly toothed margins and sunken, resin filled dots on the surfaces. Flowers are borne singly on 5-15 mm long pedicels (stalks) in the leaf axils. The calyx is 4-5 mm long and tubular shaped with 12-15 nerves and 5 teeth. The corolla is tubular with distinct short upper and lower lips at its mouth; it is 7-10 mm long, white to cream or purple-tinged, slightly hairy on the outside, and bears 4 stamens on the inside. There is a single pistil with a long slender style (stalk) that has a 2-branched tip.
Flowering in July, fruiting in early August-October.
Distinguished from other mints by combination of creeping stems, bluntly toothed leaf margins, and solitary, axillary, pedicellate flowers, each with a 5-toothed calyx, 2-lipped corolla, and 4 stamens.
British Columbia to California, east to northern Idaho and northwestern Montana. Peripheral.
Observations in Montana Natural Heritage Program Database
Number of Observations:
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Partial or deep shade of moist forests in the montane zone, sometimes in second growth.
Ecological Systems Associated with this Species
- Additional ReferencesLegend: View Online Publication
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- Gill, L. S. 1981. Biosystematics of the tribe Satureineae (Labiatae) in Canada II. Cytologia 46:45-55.
- Kratz, A.M. 1989. Satureja douglasii - summary of 1989 fieldwork for the USFS, Region 1.
- Lawrence, B.M. and A.C. Bromstein. 1974. Terpenoids in Satureja douglasii. Phytochemistry 13:1014.
- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.