The annual flower of the bluebell family Campanula exigua has several common names, including chaparral bellflower, rock harebell, and Rattan campanula.
As its common name suggests, chaparral bellflower is a member of the chaparral ecosystem, growing primarily in serpentine soils at elevations of 300–1,250 metres (980–4,100 ft). It grows amongst other Mount Diablo and regional endemic plants, all dependent on natural fire ecology conditions.
Campanula exigua sends up several long stems filled with milky sap and bearing sparse, tiny leaves.
At the end of each stem grows a bell-shaped bright blue-violet flower. The bloom period is May and June.
- Calflora Database: Campanula exigua (Chaparral harebell)
- Jepson Manual eFlora (TJM2) treatment of Campanula exigua
- U.C. Photos gallery of Campanula exigua
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