Neraudia angulata var. angulata is an erect shrub species that reaches heights of 1.5 to 3 meters. The branches of this shrub are covered in pubescence, consisting of erect and somewhat appressed hairs. The leaves are simple and alternate, with elliptic, elliptic-ovate, or ovate blades measuring 7 to 15 cm long and 3 to 5.5 cm wide. These leaves have a long-acuminate or acute apex and a base that ranges from cuneate to rounded. The upper surfaces of the leaves are sparsely silky pubescent, while the lower surfaces are more moderately so, with the hairs primarily directed towards the apex and margins, giving the lower surface a grayish to greenish appearance. The leaves are thin and contain disciform cystoliths, with coarsely dentate margins above the middle or entirely entire, and are palmately 3-veined from the base. The flowers appear in axillary clusters, with staminate flowers on pedicels up to 1 mm long and sessile pistillate flowers. This species is dioecious, with unisexual, actinomorphic (radially symmetric) flowers. The calyx of staminate flowers is silky and pubescent, while the pistillate calyx is conspicuously angled and silky. The corolla is absent in both flower types. Staminate flowers feature four stamens with strap-shaped filaments that are elastically folded in the bud and reflexed at pollen shedding. In contrast, the ovary in pistillate flowers is pseudomonomerous and one-celled. The fruit is an achene 1.5 to 2 mm long and angled, surrounded by a conspicuously angled and ridged, fleshy calyx. Each achene contains a single ovoid seed. It inhabits diverse mesic forests between 450-825 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.