Vascular Plants of North Carolina
Account for Small-flower Baby-blue-eyes - Nemophila aphylla   (L.) BrummittOnly member of Nemophila in NC.
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Section 6 » Order Solanales » Family Hydrophyllaceae
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Author(L.) Brummitt
DistributionPresent over most of the eastern third of the Piedmont, west to Caswell, Randolph, Stanly, and Union counties. Ranges east into the upper Coastal Plain (but avoiding the Sandhills region), but there essentially only along a few brownwater river floodplains (i.e., Roanoke and Cape Fear).

This species has some disjunctions in its somewhat wide Southern range. It ranges north to MD and extreme southern IL, and south to western FL and eastern TX. However, it is absent from much of the middle and upper Piedmont province and the Appalachians. Thus, populations from MD to SC are somewhat fragmented from the larger part of the range from TN and AL westward.
AbundanceQuite local, but common to abundant along a few brownwater river floodplains -- mainly the Roanoke and the Cape Fear and tributaries, and much less so along the Tar and Neuse rivers and tributaries. Scarce to absent away from such places.
HabitatThis species grows only on very nutrient-rich floodplain soils and adjacent lower slopes. It grows on natural levee forests, rich bottomland forests, and Basic Mesic Forests (lower slopes). It is strongly colonial, occurring in huge stands, but these habitats are also excellent habitat for a number of exotic species that compete with it and can smother it -- Microstegium vimineum, Stellaria media, and others.
See also Habitat Account for Rich Wet-Mesic Hardwood Forests
PhenologyBlooms in March and April, and fruits soon after flowering. It is a spring ephemeral species, disappearing from above-ground by later in May, not to reappear until early the next year.
IdentificationThis is a very small, weak-stemmed herb that almost forms mats owing to its weakness. It has a stem only about 6-8" long, with much branching. It has a few alternate leaves, each leaf divided into 3-5 lobes or segments, but only about 1" long. From many of the leaf axils grow a single very small white flower on a moderate stalk. This flower is bell-shaped, with 5 spreading lobes, but only about 1/8" across. The plant tends to have a bright grass-green to chartreuse color, as opposed to the quite similar Phacelia covillei, which may often grow with it. That species has blue-green leaves that are longer and are more strongly pinnately cut into 3-7 segments, often with purple dots along the leaf margins. Also, it has light blue to lavender and more tubular flowers, though still just as tiny at about 1/8" long. Each of these two species grows in dense stands, so much so that it can be difficult to count individuals and see where one plant stops and another begins.
Taxonomic CommentsThis species has often been named as Nemophila microcalyx.

Other Common Name(s)Eastern Baby-blue-eyes
State RankS4
Global RankG5
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Harry LeGrandNemophila aphylla; Wake County; William B. Umstead State Park; 24 March 2017 WakePhoto_natural
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