Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Asteraceae

Genus:

Bidens

Species:

Bidens cynapiifolia

Growth Characteristics

Life Cycle:

Annual

Growth Habit:

Forb/herb

Height:

3-4 ft

Light Requirements:

Full Sun

Drought Tolerance:

Low

Bloom Months:

may, jun, jul, aug, sep, oct, nov

Bloom Colors:

yellow

Native Range

United States: Hawaii, Navassa Island, Puerto Rico, Virgin Islands

Keystone Species Ranking

Bee Keystone:

★★★☆☆ Based on number of native bee species using this genus for pollen and nectar (Source: National Wildlife Federation)

Host Plant for Caterpillars

Soil Requirements

Soil Type:

rich, well-drained loamy soil

pH:

6.0 - 7.5 (slightly acidic to neutral)

Drainage:

good drainage required

Moisture:

consistently moist

Notes:

prefers fertile soils in riparian zones