Collinsia tinctoria is a species of flowering plant in the plantain family known by the common names sticky Chinese houses and tincture plant.
The oppositely arranged leaves are triangular lance-shaped, sometimes toothed, and hairy on the undersides.
The inflorescence is a series of widely spaced dense whorls of flowers, each whorl a crowded ring of flowers held on erect pedicels. The flower has five elongated sepals with rounded tips, the corolla angling sharply down from the mouth of the calyx. The corolla may be any of several colors from white to yellow to deep lavender and may be mottled or speckled and tinted in the throat. The inflorescence and some flower parts are glandular and hairy.
- Jepson Manual Treatment of Collinsia tinctoria
- USDA Plants Profile
- Collinsia tinctoria — U.C. Photo gallery
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