species 121 observations

Dwarf Starcup

Gymnosteris parvula

Field notes

Gymnosteris parvula is a flowering plant in the phlox family known by the common name smallflower gymnosteris. It is native to the western United States from California to Montana. This is a small annual herb growing a thin green to red-colored stem only a few centimeters tall. There are no leaves; the word gymnosteris comes from the Greek for "naked stem". Atop the stem is a large, fleshy inflorescence with red-tinged green bracts that serve as leaves. Within the lobular inflorescence are one to five small flowers, each less than a centimeter long. The yellow-throated flower has yellow or white oval-shaped lobes with pointed tips. It is self-pollinating.

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Range

United States

Greener is more native, amber more introduced; paler is less certain. How this was decided

Key traits

From USDA PLANTS.