Colors

Data mode

Account

Login
Sign up

X
Keyed in multiple places:

Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.

Key to Ranunculaceae, Key A: Subkey in Ranunculaceae

Copy permalink to share | Check for keys that lead to this key

1 Flowers bilaterally symmetrical, the upper sepal hooded or spurred; [tribe Delphinieae].
..2 Upper sepal hooded or helmet-shaped; petals hidden by the sepals; perianth blue or creamy white; stems weak, clambering, reclining, vining, or ascending in a curve
..2 Upper sepal spurred; petals at least partly exserted from the sepals; perianth blue, pink, white, or greenish; stems strong, erect, normally straight
1 Flowers radially symmetrical, no perianth parts spurred or hooded (except the 5 sepals spurred in Myosurus).
....3 Petals present, white or yellow, larger and more conspicuous than the sepals; sepals present, green; [in other words, with a second, green, less conspicuous perianth whorl below the largest and colored perianth whorl; note that some Anemone have a calyx-like involucre of 3 bracts subtending each flower]; [tribe Ranunculeae].
......4 Basal leaves linear to linear-spatulate, mostly 4-8 cm long, 1-3 mm wide; receptacle elongate, 1-6 cm long (superficially resembling a Plantago inflorescence)
......4 Basal leaves various, but not as above; receptacle globose to sub-cylindric, mostly < 1 cm long
........5 Sepals 3 (-4); petals 7-12; achenes pubescent, beakless; leaves simple, cordate, unlobed; [introduced garden plants]
........5 Sepals (3-) 5 (-6); petals typically 5-9 (10 in some "doubled" forms); achenes smooth or variously ornamented with spines, papillae, or tubercles, sometimes also pubescent; leaves various, usually not at once simple, cordate, and unlobed (except in Halerpestes); [native or introduced].
..........6 Cauline leaves present, well-developed; basal leaves not simultaneously cordate and unlobed
....3 Petals absent (or modified into relatively inconspicuous nectaries or staminodia); sepals present and petaloid (white, yellow, yellow-green, cream, or blue).
............ 7 Petaloid sepals 3-5 mm long, caducous; stamens white and showy; [tribe Ranunculeae]
............ 7 Petaloid sepals 6-40 mm long, not caducous; stamens not notably white and showy.
............ ..8 Leaves opposite, distributed along the stem; style plumose; [tribe Anemoneae]
............ ..8 Leaves all basal, or with a few alternate or whorled involucrate leaves on the stem; style not plumose.
............ ....9 Petaloid sepals white, bluish, or blue; basal leaves 3-5 (-7)-lobed; [tribe Anemoneae]
............ ......10 Leaves lobed, and also toothed and variously cleft; leaves not variegated
............ ......10 Leaves lobed, the margins of the lobes entire; leaves often prominently variegated
............ ....9 Petaloid sepals yellow, green, or whitish (sometimes marked with purple); basal leaves unlobed, or palmately cleft into 5-11 (-many) segments.
............ ........11 Leaves cordate-reniform, unlobed; sepals bright yellow; petals absent; [native, of bogs and marshes]; [tribe Caltheae]
............ ........11 Leaves palmately or pedately lobed or divided; sepals green, greenish, dull yellow, or whitish; petals modified into tubular nectaries; [introduced, rarely persistent or escaped from cultivation].
............ ..........12 Sepals 5, green or maroon, persistent in fruit; cauline leaves present; leaf margins sharply and finely serrate; [tribe Helleboreae]
............ ..........12 Sepals 5-8, yellow; cauline leaves either present, alternate, or absent, except for the involucre of 3 bracts which immediately subtends the flower.
............ ............ 13 Cauline leaves absent, except the 3 involucral bracts immediately subtending the flower; [tribe Cimicifugeae]
............ ............ 13 Cauline leaves present, alternate, the uppermost > 1 cm below the flower; [tribe Helleboreae]

Key to Ranunculaceae, Key B: Subkey in Ranunculaceae

Copy permalink to share | Check for keys that lead to this key

1 Fruit a follicle, each carpel with 2 or more ovules.
..2 Leaves cordate-reniform, toothed, not lobed or divided; [tribe Caltheae]
..2 Leaves variously palmately or pedately lobed or divided.
....3 Carpels 1-3; plants 3-30 dm tall; [native, except Consolida]; [tribe Delphinieae].
......4 Stems weak, clambering, reclining, or vining
......4 Stems strong, erect
....3 Carpels 3-6; plants 1-5 dm tall; [introduced, rarely persistent or escaping].
........5 Cauline leaves absent, except for the involucre which immediately subtends the fruit; [tribe Cimicifugeae]
........5 Cauline leaves present; [tribe Helleboreae].
1 Fruit an achene (or dehiscent utricle in Trautvetteria), each carpel with 1 ovule.
..........6 Leaves opposite, distributed along the stem; style plumose; [tribe Anemoneae]
..........6 Leaves all basal, or with a few alternate or whorled involucrate leaves on the stem; style not plumose.
............ 7 Basal leaves linear to linear-spatulate, mostly 4-8 cm long, 1-3 mm wide; receptacle elongate, 1-6 cm long (superficially resembling a Plantago inflorescence); [tribe Ranunculeae]
............ 7 Basal leaves various, but not as above, generally long-petiolate, with an expanded, crenate-toothed, 3-lobed, or palmately-lobed blade; receptacle globose to sub-cylindric, mostly < 1 cm long.
............ ..8 Fruit a dehiscent utricle; cauline leaves alternate; [tribe Ranunculeae]
............ ..8 Fruit an achene; cauline leaves opposite or whorled (or alternate in Ranunculus, or reduced to alternate scale-like bracts in Halerpestes).
............ ....9 Cauline leaves opposite or whorled, or reduced to 3 sepal-like involucral bracts immediately subtending the flower; sepals absent (but in Hepatica” mimicked by the bracts); [tribe Anemoneae]
............ ......10 Leaves lobed, and also toothed and variously cleft; leaves not variegated
............ ......10 Leaves lobed, the margins of the lobes entire; leaves often prominently variegated
............ ....9 Cauline leaves alternate; sepals present; [tribe Ranunculeae]
............ ........11 Achenes smooth or variously ornamented with spines, papillae, or tubercles, sometimes also pubescent, usually noticeably beaked, the beak > 0.3 mm long; leaves various, usually not at once simple, cordate, and unlobed ; [native or introduced]
............ ........11 Achenes not ornamented with spines, papillae, or tubercles, pubescent or glabrous, beakless; leaves simple, unlobed.
............ ..........12 Sepals 3; [introduced garden plants]
............ ..........12 Sepals 5; [native, of s. NJ northwards]
Cite as...