T. S. Patrick (1984) described Trillium sulcatum flowers as “relatively small and turned downward.” This is true of plants from the type locality; however, in most plants of the Cumberland Plateau, the flowers are quite large and flattened, and the petals are recurved distally and face outward.
Trillium sulcatum (lat. Trillium sulcatum) — melantkimilər fəsiləsinin trillium cinsinə aid bitki növü.
Birləpəlilər ilə əlaqədar bu məqalə qaralama halındadır. Məqaləni redaktə edərək Vikipediyanı zənginləşdirin. Trillium sulcatum (lat. Trillium sulcatum) — melantkimilər fəsiləsinin trillium cinsinə aid bitki növü.
Trillium sulcatum is a species of flowering plant in the bunchflower family Melanthiaceae.[3] It is a member of the Erectum group, a group of species typified by Trillium erectum. The specific name sulcatum means "furrowed, grooved, or sulcate",[4] which describes the tips of the sepals. It is most abundant on the Cumberland Plateau in central Tennessee and eastern Kentucky where it blooms in April and May. The species is commonly known as the southern red trillium or furrowed wakerobin.[5][6]
Trillium sulcatum is a perennial, herbaceous, flowering plant that persists by means of an underground rhizome. Like all trilliums, it has a whorl of three bracts (leaves) and a single trimerous flower with three sepals, three petals, two whorls of three stamens each, and three carpels (fused into a single ovary with three stigmas).[7] The flower sits atop a long stalk (called a pedicel) rising above the leaves. The recurved (bent backwards) petals are usually dark red but an occasional white form may be found. The berry is also red.[8][5]
Trillium sulcatum is often confused with other members of the Trillium erectum group, including Trillium flexipes, Trillium simile, Trillium vaseyi, and especially Trillium erectum. In general, it is distinguished by the relative length of its pedicel. Specifically, the sepals of Trillium sulcatum are less than half as long as the pedicel, whereas they are more than half as long in other members of the group.[9]
Trillium sulcatum was described and named by Thomas Stewart Patrick in 1984.[2] Its type specimen was collected in Grundy County, Tennessee in 1980.[10] As of March 2023, the name Trillium sulcatum T.S.Patrick is widely recognized.[3][5][11] The species is a member of the Erectum group, a group of species typified by Trillium erectum.[12]
Related to this, Lane Barksdale described Trillium erectum var. sulcatum in 1938,[13] but since he did not provide a Latin description,[14] the name is invalid. However, the variety's type specimen, collected in Surry County, North Carolina in 1937, was subsequently identified as Trillium sulcatum, and so the epithet sulcatum was retained in recognition of Barksdale's contribution.[15] Consequently, Trillium sulcatum is often referred to as the Barksdale trillium.[5][16]
Trillium sulcatum is most abundant on the Cumberland Plateau, from northeastern Alabama and northwestern Georgia northward through central Tennessee into eastern Kentucky. From Tennessee its range extends northeastward into Virginia and, via the New River drainage, into both West Virginia and North Carolina.[17][18] Unlike other members of the Trillium erectum complex, it is notably absent from the Great Smoky Mountains and the southern Blue Ridge Mountains.[5][19]
Trillium sulcatum is known to occur in the following counties:[20]
The global conservation status of Trillium sulcatum is Apparently Secure (G4).[1] At the southern edge of its range, it is imperiled (S2) in Georgia and critically imperiled (S1) in Alabama.
Trillium sulcatum is a species of flowering plant in the bunchflower family Melanthiaceae. It is a member of the Erectum group, a group of species typified by Trillium erectum. The specific name sulcatum means "furrowed, grooved, or sulcate", which describes the tips of the sepals. It is most abundant on the Cumberland Plateau in central Tennessee and eastern Kentucky where it blooms in April and May. The species is commonly known as the southern red trillium or furrowed wakerobin.
Trillium sulcatum est une espèce de plantes herbacées, vivaces et rhizomateuses de la famille des Melanthiaceae (classification APG III).
En classification classique (Cronquist), elle était placées parmi les Liliaceae.
Cette espèce, qui remplace le Trille rouge dans le sud-est des États-Unis, fleurit au printemps dans les forêts fraîches et le long des rivières. La fleur, de 4 à 10 cm de diamètre à larges pétales rouges à extrémité renversée, est portée par un pédoncule dressé ou légèrement recourbé. Les feuilles obovales à elliptiques sont acuminées. Le fruit est une baie rouge.
Du sud des Virginies, au nord de la Géorgie et de l’Alabama.
Certains plants ont des fleurs jaune pâle, ce qui avait amenés à les placer dans une forme à part (Trillium sulcatum f. albolutescens) mais celle-ci n'est plus reconnue.
Trillium sulcatum est une espèce de plantes herbacées, vivaces et rhizomateuses de la famille des Melanthiaceae (classification APG III).
En classification classique (Cronquist), elle était placées parmi les Liliaceae.
Trillium sulcatum là một loài thực vật có hoa trong họ Melanthiaceae. Loài này được T.S.Patrick miêu tả khoa học đầu tiên năm 1984.[1]
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Bài viết liên quan đến Bộ Loa kèn này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. Trillium sulcatum là một loài thực vật có hoa trong họ Melanthiaceae. Loài này được T.S.Patrick miêu tả khoa học đầu tiên năm 1984.
