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.

Click images to enlarge and show more photo credit.

Key to Hamamelis

Hamamelidaceae

Hamamelis

Copy permalink to share

1 Inner (upper, abaxial) surface of calyx yellow; petals 7-20 mm long, yellow, flowering Oct-Jan; leaves 3.7-16.7 cm long, 2.5-13 cm wide; leaf lateral veins 9 or 10 (5 on one side of the leaf, 4-5 on the other); [plants collectively widespread in our area].
(c) Weakley, Alan
  2 Stellate trichomes of the leaves moderately dense to dense, averaging 0.09 mm across, with 7-11 rays; leaves (3.6-) avg. 6.4 (-10.3) cm long, (1.8-) avg. 4.1 (-6.2) cm wide; petals 7-15 mm long, 0.5-0.8 mm wide; [e. SC south to Panhandle FL, west to se. LA in the Coastal Plain]
(c) Matt - CC-BY-NC, permission granted to NCBG
  2 Stellate trichomes of the leaves sparse to moderately dense, averaging 0.16-0.40 mm across, with 3-6 (-8) rays; leaves (4.7-) avg. 9.9 (-14.0) cm long, (3.9-) avg. 6.6 (-9.2) cm wide; petals 15-20 mm long, 1 mm wide; [widespread in our area]
(c) Cressler, Alan M.
1 Inner (upper, abaxial) surface of calyx scarlet; petals red or reddish (often yellow-tipped, or rarely completely yellow), flowering late Dec to Apr; leaves 7-24 cm long, 4-17 cm wide; leaf lateral veins 9, 10, or 11 (5 on one side of the leaf, 4, 5, or 6 on the other); [Gulf Coast of GA to TX, Interior Highlands of MO, AR, and OK].
(c) Wong, Michelle - CC-BY
(c) Wong, Michelle - CC-BY
    3 Leaves (12-) avg. 19.7 (-24) cm long, 5-17 cm wide, densely stellate-pubescent below, usually with 11 lateral veins (6 on one side of the leaf, 5 on the other); leaf base asymmetrically cordate, cordate on at least one side (the other side cordate or rounded); petals 7-14 mm long; [plants of pineland ravines in the Coastal Plain of s. MS, s. AL, e. GA, and e. TX]
(c) Aaron, Nathan
© Scott Ward
    3 Leaves mostly obovate, (7-) avg. 8.7 (-13) cm long, 4-10 cm wide, glaucous and lightly stellate-pubescent below (mostly on and near the main veins), usually with 9-10 lateral veins; leaf base cuneate, narrowed to the petiole on at least one side (cuneate, rounded, or cordate on the other side); petals 5-10 mm long; [plants of the Interior Highlands and adjacent areas of s. MO, AR, and e. OK]