Sabulina michauxii (Fenzl) Dillenberger & Kadereit. Common name: Rock Sandwort. Phenology: May-Jul. Habitat: Limestone, dolostone, calcareous sandstone, serpentine, and calcareous shale outcrops and barrens. Distribution: ME west to SD, south to VA, AL, nw. AR, TX, and NM.

Origin/Endemic status: Native

Taxonomy Comments: Two varieties are sometimes recognized: a more eastern "michauxii" entity ranging from ME west to MI, south to sw. VA, AL, and AR, and a more western "texana " entity occurring from MO and w. SD south to TX and NM. Additional study is needed.

Other Comments: The distribution is curious and fragmented.

Synonymy ⓘ: = Can, K4, NY, Dillenberger & Kadereit (2014), Schilling et al (2022); = Arenaria stricta Michx. — Tat, W, WV; = Minuartia michauxii (Fenzl) Farw. — Ar, FNA5, Il, Mi, Pa; = Sabulina stricta (Sw.) Rchb. — S; > Alsinopsis stricta (Michx.) Small — S13; > Alsinopsis texana (B.L.Rob.) Small — S13; > Arenaria stricta Michx. ssp. stricta — G, Maguire (1951); > Arenaria stricta Michx. ssp. texana (B.L.Rob. ex Britton) Maguire — GrPl, Maguire (1951); > Arenaria stricta Michx. var. stricta — C, F, Tx; > Arenaria stricta Michx. var. texana B.L.Rob. ex Britton — F, Tx; > Minuartia michauxii (Fenzl) Farw. var. michauxii — Va; > Minuartia michauxii (Fenzl) Farw. var. texana (B.L.Rob. ex Britton) Mattf. — NcTx. Basionym: Alsine michauxii Fenzl 1833

Links to other floras: = Minuartia michauxii - FNA5

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Heliophily ⓘ: 9