Question: What do Dionysia and Hesperaloe have in common?

full_context: Document 1: Pulsatilla vernalis: Pulsatilla vernalis (spring pasqueflower, arctic violet, lady of the snows) is a species of flowering plant in the family Ranunculaceae, native to mountainous habitats in Europe. Growing to 10 cm high and wide, it is a semi-evergreen perennial with hairy, divided leaves. In early spring it bears anemone-like flowers which are up to 6 cm in diameter, white flushed with violet on the outer surface of the petals, and prominent yellow stamens.
Document 2: Hesperolinon drymarioides: Hesperolinon drymarioides is a rare species of flowering plant in the flax family known by the common names drymary dwarf flax and drymaria-like western flax; it is named for its resemblance to genus "Drymaria". It is endemic to California, where it grows in the central inland North Coast Range. Most of the few known occurrences have been noted in Lake County. It is a plant of serpentine soils in chaparral and woodland ecosystems. This is a small annual herb growing a thin branching brown stem low to the ground or erect to about 20 centimeters in height. Leaves appear in whorls of four on the lower part of the stem and are dark reddish green with plentiful glandular hairs. Its flowers have light pink-veined white petals in a corolla about a centimeter across. Protruding stamens hold large yellow or purplish-white anthers.
Document 3: Lophospermum: Lophospermum is a genus of herbaceous perennial climbers or scramblers, native to mountainous regions of Mexico and Guatemala. Those that climb use twining leaf stalks. Their flowers are tubular, in shades of red, violet and purple, the larger flowers being pollinated by hummingbirds. Now placed in the greatly expanded family Plantaginaceae, the genus was traditionally placed in the Scrophulariaceae. The close relationship with some other genera, particularly "Maurandya" and "Rhodochiton", has led to confusion over the names of some species.
Document 4: Oxystylis: Oxystylis is a monotypic genus of flowering plants currently considered a part of the cleome family containing the single species Oxystylis lutea, which is known by the common name spiny caper. It is native to the Mojave Desert straddling the border between California and Nevada. It grows in rocky and sandy desert habitat, often on alkaline soils. This is an annual herb producing an erect, branching stem which may reach 1.5 meters in height. The leaf is made up of three thick, firm leaflets 2 to 6 centimeters long, borne on a stout, straight petiole. The inflorescence is a dense head of flowers clustered about the stem at the leaf axils, each flower with four small yellow petals. The fruit is a small white or purple nutlet bearing the spine-like remnant of the flower receptacle.
Document 5: Hesperaloe: Hesperaloe (false yucca) is a genus of flowering plants in the family Asparagaceae, subfamily Agavoideae. It contains perennial yucca-like plants with long, narrow leaves produced in a basal rosette and flowers borne on long panicles or racemes. The species are native to the arid parts of Texas in the United States and Mexico and are sometimes cultivated as xerophytic ornamental plants.
Document 6: Corydalis flexuosa: Corydalis flexuosa is a species of flowering plant in the genus "Corydalis", of the Papaveraceae family. It is a shade-loving perennial originating in woodland and mountainous areas of China. Growing to 30 cm , in spring it produces masses of bright blue tubular flowers with a white throat. It is summer dormant, meaning that the foliage dies down in summer.
Document 7: Brahea: Brahea is a genus of palms in the Arecaceae family. They are commonly referred to as Hesper Palms and are endemic to Mexico and Central America. All Hesper Palms have large, fan-shaped leaves.
Document 8: Deinanthe: Deinanthe is a genus consisting of a few species of rare herbaceous-habit rhizomatous plants found in the mountain woodlands of East Asia, ranging from China to Japan. They are handsome clump-forming perennials good for shade, woodland and rock gardens. These attractive deciduous plants have relatively large "fishtail" leaves (cleft at the apex). Deinanthes grow at a slow rate to be bushy and shrub-like, 2ft tall and wide. The leaves attain 3 to 4 inches in length,being deep green, roughly textured, deep veined, cordate at their bases and with serrate margins. The shoots emerge from stout, knobby rhizomes. Leaves are easily damaged in direct sun exposure. Flowering occurs in late summer to early fall. The delicate, waxy, nodding cup-shaped flowers in rich to pale purple-blue, rose or white, are borne in loose terminal clusters. Resembling gargantuan fertile hydrangea flowers, with numerous yellowish to pale blue anthers, they are occasionally accompanied by sterile flowers, as in the lacecap hydrangeas. Roots and leaves are edible.
Document 9: Hesperolinon adenophyllum: Hesperolinon adenophyllum is a rare species of flowering plant in the flax family known by the common names glandular dwarf flax and glandular western flax. It is endemic to California, where most known occurrences have been recorded in Lake and Mendocino Counties. It is generally found in chaparral ecosystems on serpentine soils. This is an annual herb growing erect to heights between 10 and 50 centimeters. Its narrow, lance-shaped leaves are lined with rows of teeth with large knobby glandular points. The flower has small sepals speckled with glandular hairs and five thin yellow petals. The stamens protrude from the face of the flower and hold large yellow anthers.
Document 10: Rhododendron: Rhododendron (from Ancient Greek ῥόδον "rhódon" "rose" and δένδρον "déndron" "tree") is a genus of 1,024 species of woody plants in the heath family (Ericaceae), either evergreen or deciduous, and found mainly in Asia, although it is also widespread throughout the highlands of the Appalachian Mountains of North America. It is the national flower of Nepal. Most species have brightly coloured flowers which bloom from late winter through to early summer.
Document 11: Hesperevax caulescens: Hesperevax caulescens is a small flowering plant in the daisy family. One common name for the plant is hogwallow starfish, as it is a somewhat flat, star-shaped plant which grows in mud. Another common name is dwarf dwarf-cudweed, as the three members of genus "Hesperevax" are known as dwarf-cudweeds and this species is smaller than the others. It may also be called involucrate evax, since its former Latin name was "Evax involucrata". This annual plant is a member of the vernal pool plant community in California, where it is possibly an endemic species, although its range might extend into Baja California. The hogwallow starfish radiates pale green spoon-shaped leaves in a basal rosette and extends a short erect stem. The flowers are less than two millimeters wide. This species grows along the outskirts of vernal pools in areas which have dried.
Document 12: Cyananthus: Cyananthus is a genus that consists of about 30 species of annual or mostly perennial herbs from high mountains of Central and East Asia. They are little Himalayan plants not higher than 4in. The name comes from the "Greek" for blue flowers. Leaves are usually small and simple, sometimes narrowing to base, tooth-lobed at summit. In August to September, the plants bear showy of bright purplish-blue, yellow or white, funnel to bell-shaped, 5-lobed flowers 1in in diameter with stamens free from the corolla and hairy throat. The flowers are borne singly on stalks. They always lose the aerial parts during the coldest months, and as spring begins, stems and leaves quickly start to reproduce.
Document 13: Dionysia (plant): Dionysia is a genus containing 49 species of flowering plants in the family Primulaceae. They are small, cushion-forming alpines native to mountains in central Asia. They are usually evergreen perennials with felted leaves, covered with bright yellow or pink, five-petalled flowers in spring. They are often difficult to cultivate if the correct conditions are not provided.
Document 14: Beschorneria: Beschorneria is a genus of succulent plants belonging to the family Asparagaceae, subfamily Agavoideae, native to semi-arid areas of Mexico and Central America. They are generally large evergreen perennials forming clumps of grey-green leaves, with tall flower-spikes to 1.5 m . Marginally hardy, they may require winter protection in areas subject to frost.
Document 15: Callianthemum: Callianthemum is a genus that consists of 24 species of little rhizomatous herbs from high mountains in Europe, Central Asia and East Asia. The botanical name comes from the Greek, which means beautiful flower. The plants are low-growing, ornamental perennials and are lovely to rock garden. Leaves are small and radical. Flowers are showy daisy-like, 1.5in in diameter, with 5-15 white or rose-color petals and nectaries at the base. Blooming in spring.
ground_truth: flowering plants