Monardella undulata

Monardella undulata is an uncommon species of flowering plant in the mint family known by the common name curlyleaf monardella.

Monardella undulata
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Lamiaceae
Genus: Monardella
Species:
M. undulata
Binomial name
Monardella undulata

Distribution

It is endemic to the coast of California from Sonoma to Santa Barbara Counties, where it is known from several coastal habitat types, including dunes, coastal sage scrub, chaparral, and forest.[1]

Description

Monardella undulata is a mostly hairless annual herb producing an erect, reddish stem up to 0.5 metres (1.6 ft) in height, and 2.5 metres (8.2 ft) in diameter. The fleshy, wavy-edged leaves are located in clusters along the stem.[2]

The inflorescence is a head of several flowers blooming in a small cup of rough-haired, sometimes purple-tinged bracts up to 3 centimeters wide. The flowers are purple in color and up to 2 centimeters long.[2]

Subspecies

Subspecies include:

Conservation

The plant is threatened by forces that degrade its coastline habitat, such as sand mining and competing introduced plant species.

This species is an important food plant for the endangered Myrtle's silverspot butterfly (Speyeria zerene myrtleae), which eats its nectar.[6]

References
  1. Calflora: Monardella undulata
  2. Jepson: Monardella undulata
  3. Calflora: Monardella undulata ssp. arguelloensis
  4. Calflora: Monardella undulata ssp. crispa
  5. Calflora: Monardella undulata ssp. undulata
  6. NPS. (2007). Habitat Assessment of Myrtle's Silverspot Butterfly at Point Reyes National Seashore


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