Scientific Name: Leptosiphon ambiguus. Lepto means slender; siphon means tube. Linanthus comes from linon, meaning flax, and anthos, meaning flower.
Family Name: Polemoniaceae (Phlox)
Description: Linanthus is an annual that grows upright up to 20 cm (8 in) tall. Linanthus flowers are long and tube-like, with five petals that range in color from blue to purple to pink. For more, see Jepson’s eFlora description.
Finding it at Edgewood: Linanthus is an obligate serpentine endemic – it will only grow on serpentine soil. Look for it at the junction of the Clarkia Trail and the lower Serpentine Loop, or on the Edgewood Trail between Canada Road and I-280. It blooms from March to June. See map below.
Corelli, T. Flowering Plants of Edgewood Natural Preserve. Half Moon Bay, CA: Monocot Press, 2004.
Information compiled by Diana Quon and Anna Lee