Morelotia gahniiformis is a perennial sedge with short, decumbent rhizomes covered in brown or yellowish-brown sheaths and their fibrous remnants. The culms are densely tufted, ranging from (12-)20-70 cm in height and measuring 2-4 mm in diameter at the base. They are obtusely trigonous and smooth, with 1-3 nodes between the base and the inflorescence. There are numerous basal leaves, with only 1-3 cauline (stem) leaves. The leaf blades are linear, longer than the culm, and 2-8 mm wide. Their margins are rough (scabrous), firmly rolled under (revolute), and gradually taper to a long, pointed apex. The sheaths surrounding the leaves are brown or yellowish-brown and disintegrate into parallel fibers. The inflorescence is an erect, compound panicle measuring (5-)10-35 cm in length and 1-2.5 cm in width. It bears 3-7 small partial panicles, which are moderately dense towards the upper part but lax and slightly interrupted towards the base. The bracts associated with the inflorescence are usually longer than the inflorescence itself. The spikelets are clustered in groups of 2 or more, each narrowly ovoid, 8-10 mm long, and 2-3 mm wide, with a pointed tip (acuminate). The glumes are brown, numbering 6-8, and arranged in 2 ranks. They disarticulate at the base and fall off. The lower 4-6 glumes are chartaceous and empty, narrowly ovate, gradually narrowing to an acuminate tip or short awned apex. They have fine hairs (hispidulous) in the upper part. The remaining two glumes subtend the achene and are 7-8 mm long, much longer than the lower ones, with a slightly pointed tip (subacute). There are three stamens, and their filaments persist at the base of the achene, with the distal part held within the convolute apex of the subtending glume. This arrangement causes the mature achenes to hang downward on the inflorescence. The style is approximately 5 mm long, with the base remaining attached to the achene apex as a slender point (subulate mucro). The fruits are ovoid ellipsoid to ellipsoid achenes, measuring 2.7-3 mm long and about 2 mm wide. They mature to a black, slightly glossy color and have rounded ends. The seeds are singular, with a thin seed coat, free from the pericarp, with the embryo at the base and abundant endosperm. It is found predominantly on lava fields, in dry and mesic forests, and subalpine shrubland between 520-2,380 meters.
Bean-shaped (Reniform): Resembling the shape of a kidney or bean.
Square or Oblong: Angular shape with all sides more or less equal or longer than wide.
Triangular: Three-sided shape, broadest below the middle.
Elliptic: Rounded at both ends. shaped like an ellipse or oval.
Ovate or Obovate: egg-shaped, broader at one end.
Linear: Extremely long and narrow, with sides usually parallel.
Round: Appears circular, with length and width roughly the same.
Cardioid (Heart-Shaped): One edge has a prominent double curve into two lobes.
Cylindrical: A cylinder with parallel sides and a circular cross-section.
Discoid: Resembling a disc or plate with two relatively flat surfaces.
Fusiform: Spindle-shaped, tapering at both ends.
Globose: Spherical.
Lenticular: Resembling a lens with two convex surfaces.
Ovoid: Egg-shaped.
Plano-convex: Having a flat ventral (planar) surface and a curved dorsal (convex) surface.
Polygonal: Having more than three flat faces meeting at angles.
Sectoroid: Resembling a segment of an orange with two relatively flat faces and one curved face.
Subglobose/ellipsoid: Inflated shape but less than spherical.
Trigonous: Having three faces that meet at a distinct angle; triangular in cross-section.
Endangered species (E) are species that are so rare they’re in danger of becoming extinct.
Threatened species (T) are species that are likely to become endangered within the foreseeable future throughout all or a significant portion of their range.
Species of Concern (SOC) are species about which there are some concerns regarding status and threats, but insufficient information is available to list the species under the Endangered Species Act (ESA).
Plant Extinction Prevention (PEP) is a state status for rare plants that focuses its efforts on species that have fewer than 50 remaining wild individuals.
Orthodox seeds (desiccation-tolerant): can be dried to an internal seed moisture of less than 12% water and stored at freezing temperatures.
Intermediate seeds (temperature-sensitive) tend to age faster than orthodox seeds and may have only a 5-year lifespan when stored at -20°C. They are recommended for storage at 5°C.
Recalcitrant seeds (desiccation-sensitive): cannot be stored in a conventional freezer as they cannot survive after drying and/or freezing at -20°C. They are recommended for cryopreservation storage.