Difference between revisions of "Crocanthemum propinquum"
Bull. Torrey Bot. Club 40: 615. 1913.
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|label=Endemic | |label=Endemic | ||
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− | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Helianthemum propinquum | |name=Helianthemum propinquum | ||
|authority=E. P. Bicknell | |authority=E. P. Bicknell | ||
+ | |publication_title=in N. L. Britton, Man. Fl. N. States ed. | ||
+ | |publication_place=2, 1069. 1905 | ||
}} | }} | ||
|synonyms= | |synonyms= | ||
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|publication year=1913 | |publication year=1913 | ||
|special status=Endemic | |special status=Endemic | ||
− | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V6/V6_769.xml |
|genus=Crocanthemum | |genus=Crocanthemum | ||
|species=Crocanthemum propinquum | |species=Crocanthemum propinquum |
Revision as of 21:17, 24 September 2019
Herbs. Stems scattered on horizontal rootstocks, ascending to erect, 10–27(–35) cm, stellate-pubescent to stellate-tomentose. Leaves cauline; petiole 2–5 mm; blade narrowly elliptic to oblanceolate, gradually narrowed to base, 10–30 × 3–6(–8) mm, surfaces stellate-tomentose abaxially, stellate-pubescent adaxially, without simple hairs, lateral veins raised abaxially. Inflorescences terminal, cymes; chasmogamous flowers 2–6 per cyme, cleistogamous in glomerules, 1–6 flowers per glomerule, on lateral leafy branches 1–3 cm, flowering 1–3 months later than chasmogamous. Pedicels (2–)8–14(–22) mm; bracts 1.5–3.5 × 0.3 mm. Chasmogamous flowers: outer sepals linear, 1–3(–4) × 0.4–0.9 mm, inner sepals ovate-elliptic, 5–8 × 2.3–4.5 mm, apex acute; petals obovate, 8–10(–13) × 6–12 mm; capsules 3.7–5.3 × 3–4 mm, glabrous. Cleistogamous flowers: outer sepals rudimentary, 0.2–0.5 × 0.2 mm, inner sepals ovate, 2–2.5 × 1.5–2.2 mm, apex acute; capsules 1.5–2.2 × 1.3–2 mm, glabrous.
Phenology: Flowering May–early Jul.
Habitat: Open woodlands, rock outcrops, sandplain grasslands, maritime heathlands, clearings, fields
Elevation: 0–1500 m
Distribution
![V6 769-distribution-map.jpg](/w/images/1/12/V6_769-distribution-map.jpg)
Conn., Del., D.C., Ga., Md., Mass., N.H., N.J., N.Y., N.C., Pa., R.I., Tenn., Va.
Discussion
The shorter stature, tiny outer sepals on cleistogamous flowers, and horizontal rootstocks distinguish Crocanthemum propinquum from C. bicknellii, which is often twice as tall, has elongate sepals, and has a caudex. Crocanthemum propinquum is disjunct from the coastal plain of Virginia to the southern Appalachian Mountains of Georgia, North Carolina, and Tennessee.
Selected References
None.