Contra Costa Goldfields 🛑 Endangered
Lasthenia conjugens
(c) Ken-ichi Ueda, some rights reserved (CC BY)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Asteraceae
- Genus:
- Lasthenia
- Species:
- Lasthenia conjugens
Growth Characteristics
- Life Cycle:
- Annual
- Growth Habit:
- Forb/herb
- Height:
- 1-2 ft
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- mar, apr, may, jun
- Bloom Colors:
- Yellow
- Ground Cover:
- Yes
Native Range
United States: California
Keystone Species Ranking
- Bee Keystone:
- ★★★☆☆ Based on number of native bee species using this genus for pollen and nectar (Source: National Wildlife Federation)
Soil Requirements
- Soil Type:
- clay-rich, seasonally wet, nutrient-poor soil
- pH:
- 5.5 - 7.5 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- seasonally moist to wet
- Notes:
- often found in vernal pools and wetlands
Germination Information
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).
Source: OpenAI GPT-4o