Monardella macrantha subsp. hallii
Hall's monardella, Hall's Monardella
Photo: parent species Monardella macrantha · no rights reserved · CC0
Family: Lamiaceae · Type: Subshrub · Native
Conservation status: CNPS 1B.3
Monardella macrantha subsp. hallii (Hall's monardella) is a native California subshrub in the Lamiaceae family, recognized by triangular leaves with truncate base distinguish from other macrantha.
Hall's monardella is a rare (CNPS 1B.3) California native shrub found in southern Santa Barbara Mountains and Peninsular Ranges in chaparral and woodland habitats at elevations of 600 to 2,000 meters. Flowering from May to August, this plant produces flowers with colors not specified in the source data. Growing with sparsely hairy stems and a compact form, the shrub develops distinctive triangular-ovate leaves. Its leaves have truncate bases, are sparsely to densely hairy, and feature delicate ciliate margins. The plant's compact growth and unique leaf structure make it a notable component of its native chaparral environments.
Identification and appearance
Key characters: 11 sympatric species; triangular leaves with truncate base distinguish from other macrantha
Habitat and range
Habitat: Chaparral, woodland
Elevation: 600-2000 m
California counties: Riverside, Orange, San Bernardino, Los Angeles, San Diego
Bloom period
Monardella macrantha subsp. hallii blooms May-Aug.
Conservation status
CNPS 1B.3
How to tell it apart
vs Mentha: Mint has multiple flower clusters spaced along the stem; Monardella has one terminal pom-pom head per stem.; vs Salvia: Sage has flowers spaced along an elongated spike; Monardella's flowers are densely packed into a rounded head.; vs Veronica: Speedwell has flowers in a loose spike and isn't aromatic; Monardella's flowers form a dense head with mint scent.; vs Phacelia: Phacelia's flower clusters uncurl like a fern; Monardella's form a compact, stationary head with a bract collar.; vs Valeriana: Valerian has tiny flowers in branched clusters; Monardella has larger mint flowers in a single terminal head.
Frequently asked questions
Is Monardella macrantha subsp. hallii native to California?
Yes. Monardella macrantha subsp. hallii is native to California (recorded as native).
When does Monardella macrantha subsp. hallii bloom?
Monardella macrantha subsp. hallii blooms May-Aug.
Where in California does Monardella macrantha subsp. hallii grow?
Monardella macrantha subsp. hallii occurs in Riverside, Orange, San Bernardino, Los Angeles, San Diego, at elevations of 600-2000 m.
What plant family does Monardella macrantha subsp. hallii belong to?
Monardella macrantha subsp. hallii is in the Lamiaceae family, genus Monardella.
Is Monardella macrantha subsp. hallii rare or endangered?
Monardella macrantha subsp. hallii carries California Rare Plant Rank 1B.3, state rank S3.
Related species
Other California species in the same genus, family, or bioregion.
Sources: Jepson eFlora · CNPS Rare Plant Inventory · Index of California Plant Names · CalPhotos · CDFW CNDDB
Last updated 2026-10-07
Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Cal-IPC, and more.