Jepson eFlora: Key page
Vascular Plants of California
Key to families | Table of families and genera

Key to Hydrophyllaceae

View taxon page for Hydrophyllaceae


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

1. Calyx  not alike, outer 3  ..... TRICARDIA

1' Calyx lobes alike or not, not cordate

2. Calyx  appendages generally present (0 in Pholistoma membranaceum, sometimes 0 in Nemophila pulchella); annual

3. Ovaryfruit hairy, not bristly ..... NEMOPHILA

3' Ovary, fruit bristly-hairy ..... PHOLISTOMA

2' Calyx sinus appendages 0; annual,  herb

4. Leaves cauline ..... DRAPERIA

4' Leaves  or, if cauline, at least some 

5. Annual

6. Herbage sticky; ovules on both sides of placenta; 1–2 seeds persistent in fruit ..... EUCRYPTA

6' Herbage generally not sticky (except Emmenanthe, some Phacelia species); ovules on 1 side of placenta; seeds not persistent in fruit

7. Flowers ± sub-spreading to pendentcorolla persistent, white, yellow, or pink, in age papery ..... EMMENANTHE

7' Flowers  to ; corolla generally deciduous, blue to purple, occasionally persistent, yellow (purple), in age not papery ..... PHACELIA (2)

5' Perennial herb

8. Plant with fleshy-fibrous or tuber-like roots or base bulb-like; style ± 2-lobed

9. Leaves compound to , deep-lobed, sinuses reaching midrib; stamens ; seeds 1–3 ..... HYDROPHYLLUM

9' Leaves simple, , toothed, or lobed, sinuses not reaching midrib; stamens ; seeds many ..... ROMANZOFFIA

8' Plant taprooted, base not bulb-like, tubers 0; style 2-lobed to -branched

10. Inflorescence many-flowered; leaves generally lobed to compound, sometimes entire ..... PHACELIA (2)

10' Inflorescence 1-several-flowered; leaves entire

11. Inflorescence 1-flowered; style tip 2-lobed; seeds many ..... HESPEROCHIRON

11' Inflorescence 1-several-flowered; style cleft ± to base; seeds 2–4 ..... HOWELLANTHUS


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