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Mecardonia (Axilflower) is a genus of herbaceous plants in the family Plantaginaceae (Plantain family). 31 species have been described,〔(''Mecardonia'' on PlantList )〕 of which 12 are accepted. Its distribution is predominantly in South America, and South East United States, including Florida 〔(Atlas of Florida Vascular Plants: Mecardonia )〕 〔(The Institute for Regional Conservation )〕 and Alabama〔(Gardening in the Coastal Southeast )〕 〔(Alabama Plant Atlas: Mecardonia )〕 but may be found as far north as Virginia. 〔(Digital Atlas of the Virginia Flora )〕(see map)〔(Map of distribution )〕 Five species are found in Argentina〔(Alderete, L.; Mori, M.; Kato, A.; Escandón, A.. Establishment of an in vitro micropropagation protocol for Mecardonia tenella. Electronic Journal of Biotechnology, North America, 915 06 2006. )〕 and three in the US.〔( Adjoa Richardson Ahedor. Systematics of the Mecardonia acuminata (tribe Gratioleae, Plantaginaceae) complex of southeastern USA )〕 == Description == They are herbaceous procumbent glabrous plants. They are mostly blackened when they are dry. Their stems are 5–40 cm in length and they have 4-alate leaves. Ovate leaves 7–25 mm in length and 3–16 mm wide, with a crenate edge; petiolate. Solitary axillary flowers, pedicles 8-20 (-26) mm in length, basally bibracteolate; 5-lobed calyx, with unequal lobes, more or less free to the base, imbricate, the adaxial lobe widely lanceate to ovate, 5-9.5 mm long and 3–6 mm wide, slightly accrescent, the 2 middle lobes longer and overlapping, the 2 abaxial lobes nearly the same size as the adaxial and overlapping the middle lobes; 5-lobed corolla, 7–8 mm long, yellow with purple at the throat, bearded at the mouth; 4 fertile stamens. Ovoid fruit capsule, 5–7 mm long, loculicidal; ovoid, reticulated seeds.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Mecardonia」の詳細全文を読む スポンサード リンク
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