Which type of inflorescence is found in the family cyperaceae?
The Cyperaceae are distinctive in being herbs with usually 3-sided, solid-pithed stems, closed-sheathed, often tristichous leaves, the inflorescence a “sedge spikelet,” consisting of a central axis bearing many sessile, distichous or spiral bracts, each subtending a single, reduced unisexual or bisexual flower, with …
How do you identify Cyperaceae?
Rush stems (Juncaceae) are generally circular in cross section, while the stems of sedges (Cyperaceae) are typically three-sided (triangular). Cross-section of a sedge, ―Sedges have edges‖. Grasses are round in cross section and generally have hollow internodes.
What is the family of sedges?
Sedges
Sedges/Family
What are characteristic feature of family poales?
They have reduced, mostly wind-pollinated or self-pollinated flowers. The flowers have a unilocular ovary with two or three carpels and a single ovule; the ovary ripens into an indehiscent fruit. The flowers form simple or complex spikes or spikelets that represent reduced inflorescences.
What habitat is Cyperaceae normally associated with?
A large, cosmopolitan family of mostly herbaceous plants, Cyperaceae occur primarily in moist temperate to wet tropical regions of the world; several species are of economic importance.
Is Cyperaceae a herb?
Neotropical Cyperaceae. Perennial or annual herbs, terrestrial, rarely submerged aquatics, or scandent; perennial species rhizomatous, stoloniferous, bulbous, or subbulbous; annual species generally caespitose.
What family grasses belong?
Poaceae (/poʊˈeɪsiaɪ/) or Gramineae (/ɡrəˈmɪniaɪ/) is a large and nearly ubiquitous family of monocotyledonous flowering plants known as grasses….Poaceae.
| Grasses Temporal range: | |
|---|---|
| Family: | Poaceae Barnhart |
| Type genus | |
| Poa L. | |
| Subfamilies |
What is meaning of Poales?
The Poales are a large order of flowering plants in the monocotyledons, and includes families of plants such as the grasses, bromeliads, and sedges. Sixteen plant families are currently recognized by botanists to be part of Poales.
What are two stem types in grasses?
The flowering stem (culm) of grasses is comprised of nodes and internodes yielding a characteristic “jointed” stem (Fig. 10). Grass stems have solid joints at the nodes with hollow or pith-filled internodes. In contrast, rushes and sedges are without nodes and internodes and have a triangular stem shape (Fig.
In which group can we categories weeds belonging to the family Cyperaceae?
(b) Sedges: The weeds belonging to the family Cyperaceae come under this group.
Which of the following inflorescence type is found in the family lamiaceae?
The Lamiaceae are distinctive in being herbs or shrubs, often aromatic with ethereal oils, with usually 4-sided stems, opposite [or whorled] leaves, a verticillaster or thyrse inflorescence [flowers solitary and axillary in some], and zygomorphic [rarely actinomorphic], usually bilabiate flowers having a superior ovary …
What is the comparison between Poaceae and Cyperaceae?
Learn about the comparison between Poaceae and Cyperaceae. 1. Stem-Cylindrical, hollow, (except Maize and Sugarcane), with nodes. 2. Leaves-Simple, alternate, ligulate, Sheath split open. 3. Flower-Flowers subtended by two glumes. 4. Scales-Glumes, lemma, palaea.
What are the sub-families of Papaveraceae?
Division of the family and chief genera: The family Papaveraceae has been divided into three sub-families viz.: 1. Papaveroideae: Latex present; flower regular; petals neither spurred nor saccate; stamens indefinite, free; carpels 2 to many. Papaver, Argemone. 2. Hypecoideae:
What is the simple umbel of a flower?
Simple or compound umbel surrounded by thin leafy bracts called involucre; in some reduced to single flower e.g., in some species of Centella and Azorella; and to a compact head in Eryngium.
What are the characteristics of Fumariaceae?
The sub-family Fumarioideae has been considered as a separate family Fumariaceae by Bentham and Hooker and Lawrence. Flowers regular without a spurred petal; stamens numerous and free; carpels two to several.