| Author | (A. Braun ex Dewell) A. Braun ex W.D.J. Koch | |
| Distribution | Scattered over much of the Mountains, with specimen records for five counties and sightings from three others. One record is for the South Mountains in the western Piedmont.
This is a Northern species, ranging from eastern Canada west to Alberta, south to NJ, PA, and IA, and farther southward in the Appalachians to western NC and eastern TN. | |
| Abundance | Very rare; NCNHP database lists 10 records, most or all still extant. However, as only two or three are known to have good to excellent populations, the NCNHP's State Rank of S1 seems appropriate, instead of S2. This is a Significantly Rare species. | |
| Habitat | This species grows in cool habitats, typically in mesic to rich hardwood forests. However, a few records appear to be from grassy balds and other openings, at high elevations. | |
| Phenology | Fruits from June to August. | |
| Identification | This is a small and rather odd-looking fern owing to the very small sterile blade with short pinnae. The stipe grows to about 5 inches long, and the sterile blade has a "long" stalk about 1/2-1 inch long. This blade is narrowly triangular in general outline, 2-3 inches long but barely 1 inch wide; it has only 2-7 pairs of pinnae, cut pinnate, with the pinnae showing only small lobes. It tends to be somewhat coriaceous/thick. The lowest pair of pinnae is the longest. In this species, the pinnae lobes are oblong to rounded, as opposed to sharply pointed (acute) in B. angustisegmentum, which also has the sterile blade sessile and more broadly triangular. The fertile blade is held a few inches above the sterile blade, at the top of the stipe. | |
| Taxonomic Comments | None. This species was not discovered in NC until after RAB (1968) was published.
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| Other Common Name(s) | Matricary Grapefern, Daisyleaf Grapefern, Chamomile Grapefern | |
| State Rank | S1 | |
| Global Rank | G5 | |
| State Status | SR-P | |
| US Status | | |
| USACE-agcp | UPL link |
| USACE-emp | FACU link |
