What Family Is a Locking Spade? Understanding Spade Classification
The term "locking spade" isn't a formal botanical classification. Instead, it refers to a specific type of spade, typically within the genus Spathiphyllum, commonly known as peace lilies. These plants are characterized by their distinctive spathes—modified leaves that surround the flower spike (spadix). The "locking" aspect usually describes a characteristic of the spathe's appearance or how it holds the spadix.
The Araceae Family: The True Home of Locking Spades
Peace lilies, including those described as "locking spades," belong to the Araceae family. This large and diverse family is known for its members' unique inflorescence structure—a combination of a spadix (a fleshy spike bearing tiny flowers) and a spathe (a modified leaf that surrounds the spadix). Many Araceae family members exhibit variations in spathe shape, color, and texture, with some exhibiting characteristics that might lead to descriptions like "locking spade."
Characteristics of Araceae Family Members:
- Spadix and Spathe: This defining characteristic is present in all members. The spadix holds numerous tiny flowers, while the spathe acts as a protective bract, often attracting pollinators.
- Herbaceous Plants: Most Araceae are herbaceous, meaning they don't have persistent woody stems.
- Variety of Growth Habits: The family includes terrestrial plants, epiphytes (plants that grow on other plants), and aquatic plants.
- Wide Geographic Distribution: They are found in tropical and subtropical regions worldwide.
Why the "Locking" Description?
The term "locking spade" is likely used informally to describe a few different characteristics:
- Tight Spathe Envelopment: Some Spathiphyllum varieties have spathes that tightly enclose the spadix, giving the impression of a "locked" structure. The spathe may only partially open as the flowers mature.
- Persistent Spathe: In some species, the spathe may remain intact and visible for a longer period, even after flowering is complete. This persistence contributes to the visual impression of a "locked" or tightly held structure.
- Specific Cultivar Names: Some peace lily cultivars might be marketed using descriptive names that include phrases like "locking spade" to highlight their unique aesthetic features. This is not a formal botanical term.
Examples of Spathiphyllum (Peace Lily) Varieties:
While there isn't a specific plant officially named "locking spade," many Spathiphyllum cultivars exhibit traits that could lead to this informal description. Some popular examples include:
- Spathiphyllum wallisii: A common peace lily known for its relatively small, elegant spathes.
- Spathiphyllum 'Mauna Loa': Known for its large, showy spathes.
- Various Hybrids: Numerous hybrids have been developed with diverse spathe shapes and colors.
In Conclusion:
While "locking spade" isn't a recognized botanical term, it's a descriptive label likely referring to certain Spathiphyllum (peace lily) varieties within the Araceae family. The term highlights the visual appearance of the spathe and spadix, often emphasizing a tight or persistent spathe envelopment. For precise identification, it's always best to consult botanical resources and look for the specific cultivar name.
