Jepson eFlora
Key to families | Table of families and genera

Key to Lythrum

View taxon page for Lythrum

Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Hypanthium broadly bell-shaped, 1–2 mm, ribs conspicuous or not; stem extensively creeping or decumbent, rooting at nodes ..... L. portula

1' Hypanthium cylindric, 4–7 mm, ribs conspicuous; stem prostrate or ascending to erect, rooting at base

2. Flowers > 2 per axil, in dense, ± sessile cymes, not on short axillary shoots ..... L. salicaria

2' Flowers 1–2 per axil, on short axillary shoots or not

3. Stem erect, branches many, above; epicalyx lobes < to > sepals, horn-like; perennial herb ..... L. californicum

3' Stem decumbent to ascending or erect, branches at base, generally 0–few above; epicalyx lobes >> to = sepals; annual or short-lived perennial herb

4. Flowers 1 per axil, not on short axillary shoots; hypanthium 4–5 × longer than wide; epicalyx lobes ± 2 × > sepals ..... L. hyssopifolia

4' Flowers 1 per axil on main shoots and on short axillary shoots; hypanthium 8–10 × longer than wide; epicalyx lobes ± = sepals ..... L. tribracteatum


Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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