Flora of North America species comparison

The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Anemia adiantifolia

Anemia mexicana

pine fern, pineland fern

Mexican fern, Mexican flowering fern
Stems

ca. 2 mm diam.

ca. 2 mm diam.
Leaves

partially dimorphic (sporangia limited to proximal pair of pinnae), 17–85 × 7–35 cm, sterile leaves (excluding erect fertile pinnae) 17–60 cm.

partially dimorphic (sporangia limited to proximal pair of pinnae), (15–)22–45 × 8–16 cm.
Petiole

straw-colored to chestnut brown, 1/2–2/3 length of leaf, 1–1.4 mm wide, hirsute to glabrous.

straw-colored, 1/2–2/3 length of leaf, ca. 1 mm wide, glabrate.
Blade

deltate, 3-pinnate, leathery.

deltate-lanceolate, 1-pinnate, somewhat leathery.
Pinnae

10–18 pairs, alternate to subopposite, segments oblanceolate, base cuneate, margins minutely denticulate, apex obtuse, pilose with stiff white hairs.

4–7 pairs, mostly alternate, lanceolate, base truncate, margins minutely serrulate, proximal margins often slightly excavate, apex acuminate, hirsute with minute white hairs to glabrous on abaxial surface, glabrous adaxially.
Spores

with ridges ± parallel, distant.

with ridges parallel and closely placed.
Fertile

pinnae usually taller than sterile blades.

pinnae usually taller than sterile blades.
2n

= 76, 114, 152.

= 76.

Anemia adiantifolia

Anemia mexicana
Habitat Terrestrial on open to lightly shaded, rocky slopes and in hammocks and pine woods, often on limestone Lightly shaded limestone outcrops of the Edwards Plateau
Elevation 0–30 m (0–100 ft) 400–500 m (1300–1600 ft)
Distribution
from FNA
FL; Mexico; Central America; West Indies in the Antilles; Trinidad; South America to Ecuador and Brazil
[WildflowerSearch map]
[BONAP county map]
from FNA
TX; n Mexico
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 2. FNA vol. 2.
Parent taxa Anemiaceae > Anemia Anemiaceae > Anemia
Sibling taxa
A. mexicana, A. wrightii
A. adiantifolia, A. wrightii
Synonyms Osmunda adiantifolia
Name authority (Linnaeus) Swartz: Syn. Fil. 157. (1806) Klotzsch: Linnaea 18: 526. (1844)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



Type/paste one or more Latin names into the boxes above; matching taxa will show up below the box as you type. You can use the up/down arrow keys to move through the list.

(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Fabaceae, Apiaceae, Boraginaceae, and Polemoniaceae.)

Choose a data source: Flora of North America

The species comparison tool is brought to you by:
Northwest Wildflowers